Serial  No.  32 


W  I 


QRAGE 

DEPARTMENT  OF  COMMERCE 


U.  S.  COAST  AND  GEODETIC  SURVEY 

E.  LESTER  JONES,  DIRECTOR 


TERRESTRIAL  MAGNETISM 


MAGNETIC  DECLINATION 

IN  MISSOURI  IN  1925 

.  / 

By 

w.  n.  McFarland 

Mathematician,  Division  of  Terrestrial  Magnetism  and  Seismology 


UNIVERSITY  OF  HUNGiS 


PRICE  10  CENTS 

Sold  by  the  Superintendent  of  Documents,  Government  Printing  Office, 

Washington,  D,  C. 


WASHINGTON 

GOVERNMENT  PRINTING  OFFICE 
1925 


l7fr{!LG  ElM'K 


5  3%, 7 
Urvt  si-rT) 


MAGNETIC  DECLINATION  IN  MISSOURI  IN  1925 


Bv  W.  N.  McFarland,  Mathematician,  Division  of  Terrestrial  Magnetism  and 

Seismology 


CONTENTS 


Page 


Introduction . . i 

Magnetic  surveys  in  Missouri . ..Ill"'  2 

U se  of  secular  change  tables . . 3 

Magnetic  declination... . .  '  5 

Magnetic  stations . . . IIZZIIZ  6 

Construction  of  isogonic  chart _  6 

Compass  surveys: 

The  compass  as  a  surveying  instrument. . .  8 

Adjustment  of  instrument _  8 

Compass  correction _  8 

Diurnal  variation _ _ _ 8 

Magnetic  storms _ _  9 

Change  of  declination  with  time  (secular 
change) . 9 


Compass  surveys— Continued.  Page 

Local  disturbance _ _  9 

True  meridian _ _ Z...ZZZZZZZZZ  10 

Magnetic  stations _ _ _ 

Legislation . . ZiZiiiiiZii  11 

Retracing  of  old  compass  surveys _  ”  n 

Precision  of  secular  change  tables _  11 

Public-land  surveys _ '  12 

Problems  of  local  surveyors _ _  '  12 

Tabular  matter: 

Secular  change  tables... _ _  13 

Values  of  magnetic  declination . ” .  19 

Descriptions  of  stations _ _ "  23 

Isogonic  chart . . 46 


INTRODUCTION 


& 

Si 

o 


The  magnetic  work  of  the  United  States  Coast  and  Geodetic  Survey, 
begun  as  one  of  the  essential  parts  of  the  preparation  of  nautical  charts 
of  the  coastal  waters,  has  been  extended  to  cover  the  interior  of  the 
country  to  meet  the  needs  of  the  surveyor.  Nearly  all  of  the  early 
land  surveys  of  the  United  States  were  made  by  the  compass,  and  the 
boundaries  were  defined  in  the  deeds  by  compass  bearings. 

There  are  many  localities  where,  for  certain  classes  of  surveying 
(especially  the  retracing  of  the  lines  of  old  compass  surveys) ,  the  com¬ 
pass  is  still  in  use.  It  has  the  advantages  of  cheapness,  simplicity  of 
operation,  and  determination  of  bearing  without  astronomical  obser¬ 
vations.  There  are,  on  the  other  hand,  numerous  sources  of  error, 
and  for  accuracy  it  is  not  comparable  with  the  engineers'  transit  with 
determination  of  the  true  bearing  by  astronomical  observation. 

The  compass  does  not,  in  general,  point  true  north,  nor  is  its 
direction  at  any  place  constant;  hence  a  knowledge  of  the  compass 
variation  (magnetic  declination)  and  its  changes  is  required  by  those 
who  make  use  of  the  compass.  Magnetic  compasses  are  not  perfect 
mechanical  instruments  and  are  likely  to  get  out  of  order.  The  only 
way  in  which  they  can  be  tested  in  a  satisfactory  manner  is  to  make 
observations  at  a  magnetic  station  where  the  declination  has  been 
accurately  determined  by  other  means.  Accordingly,  the  surveyor 
needs  to  know  principally  the  changes  of  the  declination  in  the  past 
and  its  value  at  the  present  time  at  a  convenient  station,  with  infor¬ 
mation  in  regard  to  finding  the  station. 

t  The  Coast  and  Geodetic  Survey  has  made  a  magnetic  survey  of  the 
United  States,  in  the  course  of  which  magnetic  observations  have  been 
made  at  nearly  every  county  seat  in  the  country  and  at  many  other 
places.  The  results  of  the  observations,  together  with  descriptions 


pc  o 


LOo  / 


2 


U.  S.  COAST  AND  GEODETIC  SURVEY 


of  the  stations  occupied,  have  been  published  annually,  so  that 
the  results  for  any  one  State  are  scattered  through  a  number  of 

c/  o 

publications. 

Special  Publication  No.  90,  which  should  be  in  the  hands  of 
every  surveyor,  contains  tables  showing  the  change  of  the  magnetic 
declination  up  to  1920  at  one  or  more  places  in  every  State,  a  magnetic 
map  showing  the  lines  of  equal  magnetic  declination  and  of  equal 
annual  change  for  January  1,  1920,  and  directions  for  determining  the 
true  meridian  and  the  magnetic  declination.  Later  editions  mav  be 
expected  at  intervals  of  about  five  years. 

The  present  volume  is  the  fourth  of  a  series  of  publications  giving 
for  the  States  separately  complete  information  regarding  the  mag¬ 
netic  stations  which  have  been  established  and  more  detailed  in¬ 
formation  regarding  the  change  of  declination  with  lapse  of  time. 
Similar  publications  have  already  been  issued  for  Arkansas,  Florida, 
and  North  Carolina.  It  is  intended  to  issue  supplements  as  often  as 
the  accumulated  changes  in  the  data  make  it  desirable.  The  infor¬ 
mation  is  presented  under  four  heads : 

1.  Tables  showing  the  change  in  declination  at  each  county  seat 
from  the  earliest  periods  for  which  information  is  available. 

2.  Tables  giving  values  of  the  declination  at  all  magnetic  stations  in 
the  State  for  January  1,  1925. 

3.  Descriptions  of  stations  at  which  observations  were  made, 
revised  for  all  information  available  to  August  1,  1925. 

4.  An  isogonic  chart  of  the  State  showing  the  lines  of  equal  mag¬ 
netic  declination  for  January  1,  1925.  The  values  of  declination  on 
which  the  lines  are  based  are  also  shown  on  this  chart. 

MAGNETIC  SURVEYS  IN  MISSOURI 

In  Missouri,  as  in  the  other  States  of  the  United  States,  the  earty 
values  of  the  magnetic  declination,  prior  to  the  inauguration  of  the 
systematic  magnetic  surveys,  are  derived  from  scattered  observa¬ 
tions  of  sometimes  uncertain  quality,  which  were  usually  incidental 
to  other  work.  The  earliest  within  the  State  seem  to  be  those  attri¬ 
buted  to  S.  H.  Long  in  1819.  His  record  of  three  observations  forms 
the  earliest  contribution  to  the  list  of  observed  values. 

Shortly  after  this  public-land  surveys  were  begun  in  the  State, 
and  as  the  regulations  required  the  measurement  of  the  magnetic 
declination  in  each  township  and  on  some  of  the  principal  lines,  a 
great  many  observations  were  made  which  are  recorded  in  the  field 
notes  and  on  the  plats  of  the  General  Land  Office.  However,  for 
various  reasons  this  very  extensive  body  of  observations  has  never 
been  collected  and  put  into  orderly  form. 

What  may  be  said  to  be  the  beginning  of  precise  measurements 
was  made  in  1872  by  the  National  Academy  of  Sciences  with  obser¬ 
vations  at  four  stations  in  the  vicinity  of  the  Missouri  River.  These 
were  followed  in  1875  by  two  more  in  the  southern  part  of  the  State. 
In  1878  began  the  extensive  magnetic  survey  by  Prof.  F.  E.  Nipher, 
of  Washington  University,  St.  Louis,  the  complete  results  of  which 
were  published  in  the  Transactions  of  the  St.  Louis  Academy  of 
Sciences  from  1880  to  1884.  Full  use  of  the  results  of  this  survey 
has  been  made  in  the  present  volume,  as  the  observations  were  made 
with  standard  instruments  and  apparently  with  care,  and  the  very 
considerable  number  of  them,  about  150  in  and  adjoining  Missouri 


MAGNETIC  DECLINATION  IN  MISSOURI 


3 


during  the  five  years,  makes  it  possible  to  derive  a  rather  precise 
value  of  the  amount  of  the  secular  change  since  that  time,  which  can 
be  used  to  reduce  his  observed  values  to  the  date  of  this  publication. 

Observations  by  the  United  States  Coast  and  Geodetic  Survey 
began  in  1865,  with  measurements  of  declination  at  Cape  Girardeau 
and  Wittenberg  on  the  Mississippi  River.  Only  about  half  a  dozen 
additional  measurements  were  made  until  the  beginning  of  a  system¬ 
atic  resurvey  of  the  State  in  1900,  as  a  part  of  the  general  magnetic 
survey  of  the  United  States.  Most  of  the  stations  of  the  Coast  and 
Geodetic  Survey  were  marked  in  a  durable  fashion,  and  true  bear¬ 
ings  were  established  to  prominent  objects  visible  from  them, 
which  permits  them  to  be  used  by  local  surveyors  for  the  testing  of 
compasses,  or  by  the  Coast  and  Geodetic  Survey  for  a  repetition  of 
the  magnetic  observations  for  the  determination  of  secular  changes. 

During  the  years  from  1896  to  1901  D.  W.  Eaton,  county  sur¬ 
veyor  of  Morgan  County,  made  an  extensive  series  of  observations 
in  the  county,  using  the  compass  of  an  engineer’s  transit.  He  com¬ 
pared  his  instrument  with  one  of  the  Coast  and  Geodetic  Survey 
compasses  for  which  an  index  correction  had  been  determined,  so 
that  any  considerable  error  from  this  source  seems  to  have  been 
avoided.  While  not  corrected  for  the  effects  of  diurnal  variation,  the 
results  are  valuable  as  an  extensive  series  of  observations  within  a 
small  area.  They  are  particularly  interesting  on  account  of  the  fact 
that  Morgan  County  is  in  a  region  of  rapid  change  of  declination,  and 
they  allow  the  distribution  in  the  county  to  be  determined  with 
much  more  certainty  than  would  have  been  possible  from  the  few 
observations  available  from  the  magnetic  surveys  of  Nipher  and  the 
Coast  and  Geodetic  Survey.  The  special  isogonic  chart  of  Morgan 
County,  which  faces  page  46,  has  been  prepared  from  these  observa¬ 
tions. 

USE  OF  SECULAR  CHANGE  TABLES 

These  tables  have  been  derived  by  interpolation  from  those  given 
in  Special  Publication  No.  90,  with  extension  of  the  tables  to  1925 
by  means  of  the  data  provided  by  recent  observations.  The  values 
of  declination  in  a  table  apply  strictly  only  to  the  magnetic  station 
specified.  However,  the  changes  of  declination  from  year  to  year 
given  in  a  table  apply  equally  well  to  any  place  in  a  county,  even 
though  the  declination  at  that  place  may  differ  materially  from  that 
at  the  magnetic  station. 

The  figures  on  any  line  of  the  tables  refer  to  the  1st  of  January  of 
the  year  given  in  the  first  column.  A  value  for  any  other  date  must 
be  found  by  interpolation  from  the  tabular  quantities.  While  the 
rate  of  change  is  not  constant  even  for  a  period  of  five  years,  it  is 
accurate  enough  for  all  practical  purposes  to  assume  that  the  annual 
change  is  uniform  for  the  intervals  between  the  tabular  values. 
The  earlier  portions  of  the  tables  are  less  reliable  than  the  later  ones 
because  of  the  limited  amount  and  inferior  quality  of  the  data  upon 
which  they  depend. 

In  case  it  is  desired  to  estimate  the  value  of  the  declination  at 
some  time  later  than  January  1,  1925,  the  rate  of  change  of  the  declina¬ 
tion  in  1925,  as  it  is  given  at  the  foot  of  each  secular  change  table, 
provides  as  good  a  means  of  estimating  future  values  as  is  available. 
The  amount  of  the  annual  change  can  only  be  determined  by  ob- 


4 


U.  S.  COAST  AND  GEODETIC  SURVEY 


serration,  as  its  nature  is  not  sufficiently  well  understood  to  permit 
the  prediction  of  the  amount  of  it  for  more  than  a  few  years  with 
much  accuracy.  The  use  of  the  tables  may  best  be  explained  by  a 
few  examples: 

(a)  What  was  the  change  of  magnetic  declination  in  the  vicinity 
of  Joplin,  Mo.,  between  March  1,  1863,  and  January  1,  1925? 

Joplin  is  in  Jasper  County,  and  the  secular  change  table  for  that 
county  should  be  used  to  derive  the  change  of  declination.  It  gives 
the  values  of  the  declination  at  Carthage,  but  the  changes  of  decli¬ 
nation  may  be  used  for  other  points  in  the  county.  The  following 
values  of  the  declination  may  be  taken  from  the  table: 

Declination 
o  / 


Jan.  1,  1860 
Jan.  1,  1870 
Jan.  1,  1925 


9  40  E. 

9  22  E. 

8  01  E. 


The  declination  decreased  18  minutes  between  1860  and  1870,  and 
as  March  1,  1863,  is  3.2  years  later  than  January  1,  1860,  we  assume 
a  uniform  change  during  the  10  years  and  subtract  6  minutes,  the 
proportional  amount  of  the  change,  from  9°  40'  E.,  which  gives  the 
declination  for  the  dates  of  the  problem  as  follows : 

Declination 


Mar.  1,  1863 _ _ _ _ _  9  34  E. 

Jan.  1,  1925 _  8  01  E. 

Change  of  declination _  1  33 

During  the  interval  the  magnetic  declination  has  changed  1°  33', 
and  this  is  the  correction  which  must  be  applied  to  magnetic  bear¬ 
ings  determined  about  March  1,  1863,  in  order  to  produce  the  mag¬ 
netic  bearings  of  the  same  lines  on  January  1,  1925. 

( b )  In  Carroll  County,  in  June,  1852,  a  line  was  run  out  with  a 
compass  and  found  to  have  a  magnetic  bearing  N.  37°  50'  E.  It  is 
desired  to  know  what  was  the  magnetic  bearing  of  the  same  line  in 
August,  1891. 

By  turning  to  the  secular  change  table  for  Carroll  County  we  find 
the  following  values  of  the  magnetic  declination  at  Carrollton : 

Declination 
c  / 


June,  1852 _  9  32  E. 

August,  1891 _  7  39  E. 

Change  of  declination _  1  53 


During  the  interval  the  north  end  of  the  compass  needle  has  been 
moving  westward,  and  consequently  bearings  in  the  northeast  quad¬ 
rant  have  been  increasing.  The  correction  should  then  be  added  to 
the  magnetic  bearing  in  1852  to  give  the  magnetic  bearing  in  1891. 


Magnetic 

x  bearing 

o  / 

June,  1852 - _• _  N.  37  50  E. 

Change  of  declination _  +1  53 


August,  1891 - „ - , _  N.  39  43  E. 


(c)  What  will  be  the  value  of  the  declination  at  the  magnetic 
station  at  Caruthersville  on  January  1,  1929? 


Fig.  1-MAGNETIC  STATION  MARKER 

MAGNETIC  DECLINATION 

The  table  contains  values  of  the  declination  for  January  1,  1925, 
for  all  the  stations  of  the  Coast  and  Geodetic  Survey  in  the  State, 
and  for  the  greater  part  of  the  stations  occupied  by  Professor  Nipher 
during  his  magnetic  survey  of  Missouri.-  Those  observations  of 
Professor  Nipher  which  have  been  omitted  either  were  repeated  by 
him  later  at  the  same  spot  or  else  were  affected  by  some  artificial 
disturbance,  so  that  they  were  not  representative  of  magnetic  con¬ 
ditions  at  the  point. 

The  latitudes  and  longitudes  were  derived  from  various  sources 
and  vary  considerably  in  precision.  A  few  stations  of  the  Coast  and 
Geodetic  Survey  were  also  geodetic  stations,  and  precise  positions 
are  available  for  these.  In  numerous  other  cases  it  was  possible  to 
make  an  accurate  location  of  the  magnetic  station  on  one  of  the  topo¬ 
graphic  sheets  of  the  United  States  Geological  Survey.  Where 
neither  of  these  methods  could  be  followed,  the  position  adopted  was 
usually  that  resulting  from  the  astronomic  observations  which  accom- 


MAGNETIC  DECLINATION  IN  MISSOURI  5 

By  turning  to  the  secular  change  table  for  Pemiscot  County  the 
annual  change  there  is  seen  to  be  a  decrease  of  east  declination  of 
1.7  minutes  a  year.  January  1,  1929,  is  4  years  later  than  January 
1,  1925,  so  that  the  entire  change  of  declination  during  this  period 
will  be  a  decrease  of  7  minutes.  This  amount,  subtracted  from  5° 
05'  E.,  the  value  at  the  magnetic  station  on  January  1,  1925,  gives 
4°  58'  E.,  which  is  the  most  probable  value  for  January  1,  1929. 


6 


U.  S.  COAST  AND  GEODETIC  SURVEY 


panied  the  magnetic  measurements.  The  probable  error  of  these 
observations  is  about  one-half  a  minute  in  latitude  and  about  one  min¬ 
ute  in  longitude.  Where  the  position  is  given  to  the  nearest  minute 
only,  it  was  usually  scaled  from  some  of  the  maps  available. 

The  positions  given  by  Professor  Nipher  for  his  stations  were 
derived  from  the  best  maps  available  at  the  time.  In  the  case  of 
these,  also,  many  of  them  can  be  accurately  located  now  by  means  of 
their  descriptions,  on  the  topographic  sheets  of  the  Geological  Survey, 
and  corrections  have  been  made  to  the  original  positions  where  it 
seemed  that  a  more  precise  position  could  be  established.  Where 
the  position  is  given  to  the  nearest  minute  only,  it  is  usually  that 
given  by  Professor  Nipher  in  the  published  reports  of  his  work. 

The  last  column  of  the  table  gives  the  date  of  the  last  visit  to  the 
station  by  someone  qualified  to  make  a  report  on  its  condition. 
Where .  no  date  is  given,  either  the  station  was  not  permanently 
marked  or  is  known  to  be  no  longer  available  for  use. 

MAGNETIC  STATIONS 

As  a  rule,  magnetic  observers  are  required  to  mark  each  point  at 
which  observations  are  made  and  to  furnish  a  description,  so  that  it 
may  be  found  by  anyone  desiring  to  make  subsequent  use  of  it.  In 
some  cases  only  a  temporary  mark  was  placed  or  none  at  all.  A 
stone  post  set  with  its  top  near  the  surface  of  the  ground  or  a  hole 
filled  with  concrete  are  the  usual  forms  of  marker.  In  recent  years 
it  has  been  the  practice  to  set  in  the  top  of  the  stone  or  concrete  a 
bronze  disk  3)^  inches  in  diameter  with  a  stem  3  inches  long.  One 
of  these  disks  is  shown  in  Figure  1. 

With  lapse  of  time  the  growth  of  cities  or  change  of  surroundings 
due  to  other  causes  frequently  renders  a  station  unsuitable  for  mag¬ 
netic  observations.  Some  cases  of  changes  have  already  been  reported 
by  local  surveyors  and  been  incorporated  in  the  descriptions.  Any¬ 
one  having  occasion  to  use  any  of  the  stations  is  requested  to  note 
needed  changes  in  the  descriptions  and  report  them  to  this  office. 

In  some  cases  a  second  stone  has  been  set  to  mark  the  true  meridian. 
The  description  states  whether  the  magnetic  observations  were 
made  at  the  north  or  south  end.  The  same  one  should  be  used  for 
testing  compasses.  Most  descriptions  of  marked  stations  include 
the  true  bearing  of  one  or  more  prominent  objects.  By  setting  off  the 
true  bearing  the  direction  of  true  north  can  be  obtained  just  as  well 
as  from  a  meridian  mark.  It  is  necessary  to  use  care  in  identifying 
these  objects,  as  they  are  .perhaps  even  more  likely  to  disappear  with 
time  than  the  stations  themselves.  Information  in  regard  to  these  is 
particularly  desired. 

CONSTRUCTION  OF  ISOGONIC  CHART 

• 

The  isogonic  charts  show  graphically  by  means  of  lines  of  equal 
magnetic  declination  (isogonic  fines)  the  distribution  of  the  magnetic 
declination  on  January  1,  1925.  The  lines  are  drawn  at  intervals  of 
20  minutes.  This  seems  convenient  for  interpolation  and  frequent 
enough  to  show  the  distribution  as  well  as  it  can  be  ascertained  from 
the  number  of  observations  available.  The  values  of  declination 
upon  which  the  charts  are  based  are  shown  on  the  map  to  the  nearest 
tenth  of  a  degree  and  correspond  to  the  date  of  the  chart. 


MAGNETIC  DECLINATION  IN  MISSOURI 


7 


An  inspection  of  the  observations  shows  that  there  is  usually  a  lack 
of  uniformity  in  the  changes  between  stations.  These  irregularities 
must  be  considered  to  be  disturbances  of  greater  or  less  degree  super¬ 
posed  upon  the  general  distribution  of  the  region.  It  is  possible  to 
draw  the  isogonic  lines  in  such  a  manner  that  they  will  fit  the  ob¬ 
served  values  as  exactly  as  desired,  but  such  lines  would  be  a  suc¬ 
cession  of  bends  and  loops  which  probably  would  not  represent  the 
declination  at  points  where  no  observations  had  been  made  any 
better  than  more  regular  lines.  An  examination  of  the  observed  val¬ 
ues  will  show  how  improbable  it  is  that  an  added  observed  value 
would  fit  any  such  system.  For  this  reason  it  is  customary  to  smooth 
out  the  isogonic  lines.  In  the  accompanying  chart  the  irregularities 
which  may  be  considered  as  peculiar  to  a  station  or  even  to  a  locality 
have  been  eliminated  by  using  mean  values  in  the  actual  placing 
of  the  lines,  but  those  irregularities  of  broader  extent  which  are  of 
sufficient  size  to  affect  the  form  of  several  isogonic  lines  have  been 
retained. 

The  chart  furnishes  the  means  of  estimating  the  value  of  the 
declination  at  points  where  no  observations  have  been  made.  It 
is  important  to  have  some  idea  as  to  how  much  reliance  can  be 
placed  on  such  values.  This,  of  course,  depends  on  the  closeness  of 
the  agreement  between  the  chart  and  the  observations  in  the  region. 
The  method  of  making  the  chart  just  described  makes  it  plain 
that  it  is  probable,  though  not  necessarily  certain,  that  where  the 
observed  values  differ  in  a  marked  degree  from  the  chart  values  the 
region  is  disturbed  to  the  amount  of  the  differences  or  even  more. 
In  such  cases  too  much  reliance  should  not  be  placed  on  chart  values. 
The  possibility  should  not  be  overlooked  that  disturbance  may 
exist  in  a  county,  although  none  is  indicated  by  the  observation 
at  the  county  seat,  or  that  an  observed  disturbance  at  the  county 
seat  may  not  extend  throughout  the  county;  but  in  most  cases  the 
differences  between  chart  and  observations  are  a  good  guide. 

The  reliability  of  chart  values  for  the  State  as  a  whole  is  indicated 
by  a  statement  in  regard  to  the  amount  of  the  differences.  For  22 
per  cent  of  the  stations  the  differences  between  chart  and  observa¬ 
tions  are  less  than  5  minutes  and  for  56  per  cent  less  than  15  minutes. 
There  are,  however,  14  stations  where  the  difference  is  greater  than 
1°  00',  and  at  the  base  of  Pilot  Knob  it  amounts  to  4°  25'. 

The  small  chart  of  Morgan  County  is  based  on  observations  in 
which  the  method  of  measurement  was  not  so  precise  as  for  the 
observations  given  on  the  State  chart,  but  in  spite  of  this  lack  of 
precision  in  observation  they  show  more  evenness  and  closer  corre¬ 
spondence  with  the  chart.  The  statement  of  the  differences  between 
chart  and  observations  will  make  this  evident.  In  this  case  38  per 
cent  of  the  differences  were  less  than  5  minutes  and  75  per  cent  were 
less  than  15  minutes.  The  greatest  difference  between  chart  and 
'  observation  was  only  32  minutes,  and  the  probable  error  of  the  chart 
on  any  single  observation,  derived  from  all  the  differences,  is  8 
minutes. 

With  this  understanding  the  chart  will  serve  as  a  good  guide.  It 
is  frequently  necessary  to  take  a  value  from  the  chart  and  get  the 
corresponding  declination  for  an  earlier  date  by  applying  the  secular 
change  from  the  tables.  It  should  be  understood  that  for  cases  of 


60775— 25f - 2 


8 


U.  S.  COAST  AND  GEODETIC  SURVEY 


moderate  disturbance  the  secular  change  is  the  same  as  for  an  undis¬ 
turbed  region. 

COMPASS  SURVEYS 

THE  COMPASS  AS  A  SURVEYING  INSTRUMENT 

The  compass  is  not  an  instrument  of  precision.  Moreover,  the 
earth’s  magnetism  on  which  it  depends  is  constantly  changing. 
Hence,  results  of  great  accuracy  can  not  be  expected  with  it.  It 
has  the  advantage  of  .  simplicity,  cheapness,  and  speed.  Its  use 
as  a  surveying  instrument  should  be  avoided  when  circumstances 
will  permit.  It  is  very  useful,  however,  in  retracing  old  lines  orig¬ 
inally  run  by  compass,  and  for  surveys  where  great  accuracy  is  not 
required  or  where  accuracy  must  be  sacrificed  to  speed,  particularly 
in  wooded  areas,  the  compass  is  indispensable.  When  the  com¬ 
pass  is  used,  precautions  should  be  taken  to  eliminate  as  many  of 
the  various  sources  of  error  as  possible. 

ADJUSTMENT  OF  INSTRUMENT 

One  frequent  source  of  error  is  lack  of  proper  care  of  the  com¬ 
pass.  The  more  important  points  to  be  examined  are:  See  that  the 
peep  sights  are  vertical;  look  out  for  a  sluggish  needle,  which  may 
be  due  to  a  damaged  jewel,  a  dull  pivot,  or  loss  of  magnetism;  sec 
that  the  needle  is  horizontal,  shifting  the  balancing  weight  if  neces¬ 
sary;  and  adjust  the  level. 

COMPASS  CORRECTION 

t 

This  may  be  determined  by  observing  at  a  station  where  observa¬ 
tions  have  been  made  with  an  instrument  known  to  be  free  from 
error,  as  at  one  of  the  magnetic  stations  of  the  Coast  and  Geodetic 
Survey.  The  difference  between  the  declination  for  such  a  station 
furnished  by  this  office  and  the  value  determined  by  the  surveyor’s 
compass  represents  the  correction  which  must  be  applied  to  results 
with  the  compass.  For  high-grade  modern  compasses  the  correc¬ 
tion  is  small,  but  for  older  instruments  a  quarter  of  a  degree  or  more 
is  probably  not  unusual. 

DIURNAL  VARIATION 

The  direction  of  the  compass  needle  at  any  point  is  constantly 
changing.  In  the  course  of  the  day  there  is  a  periodic  change, 
with  an  easterly  extreme  about  8  a.  m.  and  a  westerly  extreme 
about  1  p.  m.,  and  a  daily  range  averaging  in  Missouri  about  5 
minutes  in  winter  and  10  minutes  in  summer.  The  magnitude 
of  this  correction  is  indicated  by  the  following  table,  which  gives 
the  average  diurnal  variation  for  a  series  of  years  at  the  magnetic 
observatory  of  this  bureau  at  Cheltenham,  Md.  However,  the 
table  does  not  take  into  consideration  the  irregular  and  sometimes 
extensive  departures  of  the  needle  from  the  mean  position  indicated 
by  the  table  of  diurnal  variation.  For  individual  days  of  ordinary 
character  the  departures  from  the  daily  mean  may  be  50  per  cent 
greater  than  the  values  given  in  the  table.  For  most  compass  sur¬ 
veys  these  fluctuations  need  not  be  taken  into  consideration,  but 
when  as  great  accuracy  as  possible  is  sought  a  correction  should  be 


MAGNETIC  DECLINATION  IN  MISSOURI 


9 


applied  to  the  observed  reading,  depending  on  the  time  of  day. 
In  case  a  more  precise  correction  is  desired,  it  may  be  obtained  from 
this  office,  if  the  place,  day,  and  hour  of  observation  are  given. 

The  table  shows  corrections  to  observed  west  declinations.  For 
correcting  east  declinations  the  signs  will  need  to  be  reversed. 

Diurnal  variation  of  declination  at  the  Cheltenham  ( Md .)  magnetic  observatory 


Hour 


1  a.  m 

2  a.  m 

3  a.  m 

4  a.  m 

5  a.  m 

6  a.  m 

7  a.  m 

8  a.  m. 

9  a.  m 
10  a.  m. 
11a.  m 
Noon.. 


January, 
Febru¬ 
ary,  No¬ 
vember, 
Decem¬ 
ber 

March, 

April. 

Septem¬ 

ber, 

October 

1 

May, 

June, 

July, 

August 

Hour 

' 

January, 
Febru¬ 
ary,  No¬ 
vember, 
Decem¬ 
ber 

March, 

April, 

Septem¬ 

ber, 

October 

May, 

June, 

July, 

August 

/ 

/ 

/ 

/ 

> 

/ 

-0.2 

+0.  1 

+0.1 

1  p.  m _  _ 

-2.7 

-4.3 

-5.0 

-0.3 

+0.3 

+0.2 

2  p.  m _ 

-2.6 

-4.2 

-4.7 

-0.  1 

+0.  5 

+0.3 

3  p.  m _  _ 

-2.0 

-3. 1 

-3.5 

+0.  1 

+0.8 

+0.8 

4  p.  m _ 

-1.2 

-1.8 

-2.2 

+0.3 

+1.1 

+  1.7 

5  p.  m _  _ _ 

-0.5 

-0.8 

-0.8 

+0.6 

+2.0 

+3.  5 

6  p.  m _  _ _ 

0.0 

-0.4 

0.0 

+1.1 

+3.4 

+4.9 

7  p.  m . . 

+0.3 

-0.  1 

0.0 

+2.0 

+4.2 

+5.3 

8  p.  m _ 

+0.5 

0.0 

-0. 1 

+2.6 

+3.7 

+4.0 

9  p.  m _ _ 

+0.6 

+0.  2 

0.0 

+2.0 

+  1.8 

+1.1 

10  p.  m . . . 

+0.5 

+0.2 

+0.1 

+0.2 

-0.9 

-1.9 

11  p.  m _ 

+0.4* 

+0.  2 

+0.1 

-1.  7 

-3.  2 

-4.  1 

Midnight _  _  .. 

+0.1 

+0.  2 

+0.1 

MAGNETIC  STORMS 

During  the  occurrence  of  a  magnetic  storm  variations  from  the 
normal  of  half  a  degree  or  more  may  occur.  The  surveyor  should 
be  on  the  lookout  for  such  disturbances,  which  may  be  indicated  by 

unusual  activity  of  the  needle. 

< 

CHANGE  OF  DECLINATION  WITH  TIME  (SECULAR  CHANGE) 

The  secular  change  is  the  one  in  which  the  surveyor  is  most  inter¬ 
ested,  especially  as  it  affects  the  retracing  of  lines  of  old  surveys. 
By  referring  to  the  tables  it  will  be  seen  that  the  annual  change  in 
Missouri  now  (1925)  ranges  from  about  three  minutes  at  Kahoka 
in  the  northeast  to  one  minute  at  Pineville  in  the  southwest. 
Throughout  the  State  the  north  end  of  the  magnetic  needle  is  moving 
slowly  westward,  so  that  east  declination  is  decreasing. 

The  direction  of  the  long-period  motion  of  the  magnetic  needle  has 
changed  several  times  in  Missouri  since  the  beginning  of  the  record 
of  observations  in  the  State.  An  easterly  extreme  of  the  north  end 
of  the  needle  occurred  at  Sedalia  about  1835,  after  which  a  westerly 
motion  set  in  until  1902,  when  the  motion  became  again  easterly. 
This  lasted  only  until  1915,  when  the  present  westerly  motion  set  in. 
The  dates  at  which  these  reversals  of  direction  took  place  vary  some¬ 
what  throughout  the  State,  but  they  can  be  found  for  any  point  from 
the  secular-change  table  for  the  vicinity. 

LOCAL  DISTURBANCE 

The  direction  of  the  compass  needle  changes  from  place  to  place. 
The  rate  of  change  is  generally  small,  so  that  for  the  survey  of  a  small 
area  the  declination  may  be  considered  constant.  The  presence  of 
local  disturbance  can  be  detected  by  observing  the  compass  bearing 


10 


U.  S.  COAST  AND  GEODETIC  SURVEY 


of ‘a  line  from  both  ends.  If  there  is  a  difference  it  is  an  indication 
that  the  changes  of  declination  with  change  of  locality  are  unusually 
rapid.  Rapid  changes  are  probably  due  to  the  presence  of  the  mag¬ 
netic  oxide  of  iron  in  rock  near  the  surface. 

In  addition  to  disturbances  due  to  natural  conditions  there  may 
be  artificial  disturbances  caused  by  the  proximity  of  iron  pipes, 
buildings,  iron  fences,  electric  car  lines,  etc.  Power  lines  carrying 
alternating  current  will  have  no  effect.  As  these  artificial  dis¬ 
turbances  are  subject  to  change  with  time,  they  should  be  looked 
out  for  when  retracing  old  surveys.  They  are  of  special  importance 
in  the  vicinity  of  a  magnetic  station,  as  they  may  render  the  station 
useless  for  determining  the  compass  correction. 

The  tools  of  the  surveyor  should  not  be  overlooked  in  this  con¬ 
nection.  An  ax,  lining  pole,  steel  tape,  or  pins  may  deflect  the 
needle  if  brought  too  near,  and  the  brim  of  a  stiff  hat  usually  contains 
a  strip  of  steel  which  may  have  an  appreciable  effect  on  the  needle. 

TRUE  MERIDIAN 

Since  the  direction  of  the  compass  needle  is  constantly  changing, 
and  since  two  compasses  may  give  different  readings  at  the  same 
time  and  place,  it  is  highly  desirable  to  provide  means  for  referring 
the  compass  bearings  to  the  true  meridian  in  every  compass  survey. 
The  best  method  is  to  determine  the  true  bearing  of  one  of  the  lines 
of  the  survey  by  observations  on  Polaris  or  the  sun,  as  explained  in 
Special  Publication  No.  90.  The  difference  between  the  true  bear¬ 
ing  and  the  compass  bearing  (with  the  compass  correction  applied) 
gives  the  magnetic  declination  at  that  particular  time  and  place. 
If  there  is  no  evidence  of  local  disturbance,  this  value  may  be  assumed 
to  apply  to  all  the  lines  of  the  tract.  When  in  later' years  a  surveyor 
makes  a  resurvey  of  the  tract,  he  can  reestablish  one  of  the  lines  by 
astronomical  observations  and  determine  the  declination  with  his  com¬ 
pass.  The  difference  between  the  two  values  of  the  declination  can 
then  be  used  as  a  correction  to  be  applied  to  the  earlier  compass 
bearings. 

As  a  rule,  however,  the  determination  of  a  true  bearing  for  each 
survey  is  not  feasible.  The  next  best  thing  is  the  establishment  of 
a  true  meridian  line  centrally  located  in  the  field  of  the  operations 
of  the  surveyor  (usually  the  county  seat  in  the  case  of  the  county 
surveyor)  at  which  he  may  determine  the  value  of  the  magnetic 
declination  at  any  time  with  his  compass,  which  value  should  be 
recorded  with  any  survey  which  he  makes  at  that  time.  His  observa¬ 
tions  should  be  repeated  at  least  once  a  year  to  guard  against  possible 
changes  in  his  compass  and  to  take  into  account  the  secular  change 
in  the  declination. 

When  in  later  years  another  surveyor  wishes  to  retrace  the  lines 
of  the  survey,  the  declination  determined  with  his  compass  at  the 
same  meridian  line  will  give  him  the  correction  to  be  applied  to  the 
compass  bearings  of  the  earlier  survey. 


MAGNETIC  DECLINATION  IN  MISSOURI 


11 


MAGNETIC  STATIONS 

In  many  cases  a  surveyor  will  not  be  in  a  position  to  establish  and 
maintain  a  meridian  line  which  is  a  suitable  place  for  testing  com¬ 
passes  and  which  will  remain  available  in  future  years.  The  magnetic 
stations  of  the  Coast  and  Geodetic  Survey,  where  available,  meet  this 
very  need,  and  it  is  one  of  the  purposes  of  this  publication  to  make  it 
easy  to  use  these  stations.  Most  of  them  were  marked  in  a  perma¬ 
nent  manner,  and  at  some  of  the  county  seats  an  additional  stone 
marks  the  true  meridian.  True  bearings  to  prominent  objects  are 
provided  in  most  cases. 

The  magnetic  stations  are  established ,  'primarily ,  for  the  benefit  of 
the  local  surveyors ,  and  in  their  own  interest  they  should  endeavor  to 
have  the  stations  preserved  for  future  use.  This  office  must  depend 
largely  on  the  cooperation  of  local  surveyors ,  in  the  form  of  reports  of 
changes,  to  keep  its  record,  of  the  condition  of  the  magnetic  stations  up 
to  date,  and  reguests  the  cooperation  of  local  surveyors  in  the  form  of 
reports  of  any  changes.  It  will  then  know  where  new  stations  are 
'  needed  and  can  act  accordingly.  Reports  are  particularly  desired  in 
regard  to  those  stations  marked  as  not  recently  visited. 

LEGISLATION 

The  importance  of  the  testing  of  surveyors’  compasses  has  been 
recognized  in  several  States  by  the  passage  of  laws  requiring  the 
establishment  of  meridian  lines  and  the  testing  of  surveyors’  com¬ 
passes  at  stated  intervals.  Unfortunately,  in  many  cases  the  loca¬ 
tion  of  the  meridian  line  was  not  such  as  to  insure  freedom  from 
present  and  future  artificial  disutrbances,  and  in  others  either  the 
compass  tests  were  not  made  or  the  results  not  recorded,  so  that 
the  object  of  the  laws  has  not  been  fully  attained. 

RETRACING  OLD  COMPASS  SURVEYS 

One  of  the  most  important  uses  of  the  surveyor’s  compass  at  the 
present  time  and  the  one  that  gives  the  most  trouble  is  the  reestab¬ 
lishment  of  lost  boundary  lines  originally  run  by  compass.  When 
one  line  of  the  tract  has  been  preserved,  the  surveyor  can  use  the 
change  of  compass  bearing  of  that  line  to  correct  the  original  bearings 
of  the  lost  lines.  In  many  cases,  however,  there  is  nothing  but  a 
starting  point.  Sometimes  the  problem  is  complicated  by  errors 
introduced  at  the  time  of  previous  resurveys. 

Cases  are  not  infrequent  where  compass  bearings  given  in  the 
original  deed  are  repeated  in  a  subsequent  deed,  perhaps  50  years 
later,  when  the  bearings  may  have  changed  a  degree  or  more.  In 
other  cases,  where  a  piece  of  property  has  been  subdivided,  the  bear¬ 
ings  of  the  old  lines  are  not  changed  in  the  new  deed,  but  the  bearings 
of  the  subdividing  lines  are  given  as  observed  at  the  time  of  the 
subdivision. 

PRECISION  OF  SECULAR  CHANGE  TABLES 

To  assist  surveyors  in  redetermining  lost  boundary  lines  fixed 
originally  by  compass,  where  local  information  on  the  change  of 
bearing  of  lines  is  lacking,  this  bureau  has  made  a  careful  study  of 


12 


U.  S.  COAST  AND  GEODETIC  SURVEY 


all  available  data  on  the  change  of  the  magnetic  declination  with 
time  and  has  prepared  tables  showing  approximately  the  change 
from  the  date  of  the  earliest  observations  to  the  present  time  for  all 
parts  of  the  United  States.  In  using  these  tables  the  surveyor  must 
bear  in  mind  the  uncertainties  incident  to  the  use  of  the  compass 
and  should  not  be  surprised  if,  for  example,  the  change  in  declination 
since  the  early  part  of  the  nineteenth  century,  as  given  by  the  tables, 
differs  by  as  much  as  half  a  degree  from  the  value  indicated  by  his 
own  tracing  of  old  lines.  The  tables  are  intended  to  give  the  actual 
change  in  the  magnetic  declination,  eliminating  as  far  as  possible  the 
errors  of  individual  instruments;  but  they  are  only  approximate,  and 
the  earlier  portions  are  less  reliable  on  account  of  the  inferior  char¬ 
acter  (and  limited  amount  of  the  data  on  which  they  are  based. 

These  tables  are  essentially  the  same  as  those  which  have  been 
published  previously  by  the  Coast  and  Geodetic  Survey  in  the  various 
editions  of  secular  change  tables  which  it  has  issued  for  the  United 
States.  The  tables  have  been  reviewed  from  time  to  time  as  later 
observations  became  available  and  such  modification  as  seemed 
necessary  introduced,  so  that  they  now  represent  the  best  information 
available  and  are  intended  to  supersede  any  tables  which  have  pre¬ 
viously  been  furnished. 

For  the  past  50  years  this  bureau  has  been  making  systematic 
observations  at  repeat  stations  in  all  parts  of  the  United  States  to 
keep  track  of  the  change  of  declination.  The  data  prior  to  that  time 
have  been  received  mainly  from  other  sources.  There  is  no  doubt 
that  much  information  on  the  subject  is  in  the  hands  of  local  survey¬ 
ors,  resulting  from  their  experiences  and  that  of  their  predecessors 
in  rerunning  well-defined  lines  of  old  compass  surveys.  This  office 
has  received  such  information  from  time  to  time  from  surveyors,  but 
more  of  it  would  be  a  welcome  addition  to  that  already  on  file. 

PUBLIC-LAND  SURVEYS 

The  original  survey  and  subdivision  of  the  public  lands  in  the 
United  States  was  made  by  the  General  Land  Office,  and  that  class 
of  surveys  is  under  the  jurisdiction  of  that  office.  Questions  arising 
in  the  retracing  of  section  lines  should  be  handled  in  accordance 
with  the  rules  and  regulations  which  it  has  established  for  that 
purpose.  Many  determinations  of  the  magnetic  declination  were 
made  in  connection  with  the  original  survey,  and  the  secular  change 
tables  may  sometimes  be  found  useful  in  finding  lost  corners. 

PROBLEMS  OF  LOCAL  SURVEYORS 

Some  of  the  more  general  problems  of  the  surveyor  have  been 
indicated  in  the  examples  given  in  explaining  the  use  of  the  secular 
change  tables,  and  reference  has  been  made  to  some  of  the  difficul¬ 
ties  which  he  may  encounter.  The  principles  and  methods  of  sur¬ 
veying  are  fully  explained  in  textbooks  on  the  subject.  The  special 
problems  of  the  individual  surveyor  are  too  varied  to  warrant  an 
attempt  to  give  general  solutions.  The  following  books  and  publica¬ 
tions  may  be  found  useful: 

Gillespie  and  Staley,  Treatise  on  Surveying,  part  1.  D.  Appleton  &  Co.,  New 
York. 


MAGNETIC  DECLINATION  IN  MISSOURI 


13 


Johnson  and  Smith,  Theory  and  Practice  of  Surveying.  John  Wiley  &  Sons, 
New  York.  \ 

Breed  and  Hosmer,  The  Principles  and  Practice  of  Surveying,  part  1.  John 
Wiley  &  Sons,  New  York. 

The  three  books  mentioned  above  are  all  standard  works  on  sur¬ 
veying. 

Compass  Surveying  and  the  Simplified  Calculation  of  Farm  Areas,  by  Charles 
Mitchell  Thomas,  published  by  the  D.  A.  St.  Clair  Press,  Wytheville,  Va.  This 
contains  the  elements  of  compass  surveying  and  the  calculation  of  areas  by  the 
method  of  double  meridian  distances.  It  should  be  intelligible  to  those  without 
technical  training  in  surveying. 

A  Treatise  on  the  Law  of  Surveying  and  Boundaries,  by  Frank  Emerson  Clark, 
published  by  the  Bobbs-Merrill  Co.,  of  Indianapolis.  This  deals  with  the  legal 
aspects  of  surveying  of  both  the  public  and  private  land  surveys  of  the  United 
States. 

Manual  of  Surveying  Instructions  for  the  Survey  of  the  Public  Lands  of  the 
United  States  and  Private  Land  Claims,  issued  by  the  General  Land  Office  and 
for  sale  by  the  Government  Printing  Office,  Washington,  D.  C. 

Publications  of  the  Coast  and  Geodetic  Survey  on  terrestrial  mag¬ 
netism  are  listed  in  full  in  the  List  of  Publications  of  the  Department 
of  Commerce.  There  may  be  mentioned  as  particularly  touching 
the  work  of  the  surveyor: 

Special  Publication  No.  90,  containing  an  isogonic  chart  of  the  United  States 
for  1920  and  secular  change  tables  for  the  United  States. 

Serial  No.  289,  a  pamphlet  on  compass  surveys. 

The  Earth’s  Magnetism,  issued  in  1925,  contains  a  historical  sketch  of  the 
development  of  our  knowledge  of  this  phenomenon,  a  general  description  of  the 
methods  and  instruments  used  for  measuring  the  earth’s  magnetism,  and  a  state¬ 
ment  of  the  extent  at  that  time  of  the  accumulated  data.  The  theories  which 
have  been  advanced  to  account  for  the  earth’s  magnetism  are  outlined,  and  its 
relations  to  other  phenomena  are  touched  upon. 

Secular  change  of  the  magnetic  declination 


County _ 

Place . 

Adair 

Kirks- 

ville 

Andrew 

Savan¬ 

nah 

Atchison 

Rock- 

port 

Audrain 

Mexico 

Barry 

Cassville 

Barton 

Lamar 

Bates 

Butler 

Benton 
W  arsaw 

Bollinger 

Marble 

Hill 

O  / 

O  / 

O  / 

O  / 

O  t 

O  / 

O  / 

O  / 

O  / 

1810... . 

7  54  E 

1820 

9  47  E. 

10  28  E. 

10  57  E. 

9  09  E 

10  04  E. 

8  06 

1830. . . 

9  55 

10  38 

11  09 

9  17 

9  22  E. 

. . 

10  26  E. 

9  42  E. 

10  10 

8  09 

1840 _ 

9  55 

10  41 

11  14 

9  16 

9  23 

10  28 

9  45 

10  10 

8  04 

1850. . 

9  47 

10  37 

11  11 

9  06 

9  17 

10  23 

9  41 

10  04 

7  49 

1860 . 

9  30 

10  24 

11  00 

8  47 

9  03 

10  10 

9  29 

9  49 

7  27 

1870. . 

9  07 

10  05 

10  42 

8  23 

8  44 

9  52 

9  12 

9  29 

7  00 

1880. . 

8  30 

9  32 

10  10 

7  45 

8  13 

9  21 

8  41 

8  54 

6  23 

1890. . 

7  46 

8  51 

9  30 

7  03 

7  35 

8  43 

8  02 

8  12 

5  44 

1900 _ 

7  17 

8  26 

9  06 

6  33 

7  11 

8  18 

7  38 

7  46 

5  13 

1905 . 

7  16 

8  28 

9  09 

6  30 

7  11 

8  19 

7  39 

7  47 

5  08 

1910 . 

7  19 

8  34 

9  15 

6  31 

7  18 

8  25 

7  45 

7  52 

5  06 

1915. . . 

7  23 

8  40 

9  21 

6  35 

7  26 

8  32 

7  52 

7  58 

5  08 

1920 . 

7  17 

8  36 

9  16 

6  30 

7  26 

8  31 

7  50 

7  55 

5  05 

1925 . 

7  08  E. 

8  28  E. 

9  08  E. 

6  22  E. 

7  24  E. 

8  27  E. 

7  45  E. 

7  49  E. 

4  59  E 

Annual 

change  in 

1925 . 

2'.  8  deer. 

2'.  5  deer. 

2'.  6  deer. 

2'.  5  deer. 

1'.  5  deer. 

1'.  8  deer. 

2'.  0  deer. 

2'.  1  deer. 

2'.  1  deer 

14 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Secular  change  of  the  magnetic  declination — Continued 


County _ 

Place.. . 

Boone 

Colum¬ 

bia 

Buchan¬ 

an 

St. 

Joseph 

Butler 

Poplar 

Bluff 

i 

Caldwell 

Kingston 

Calla¬ 

way 

Fulton 

Camden 

Linn 

Creek 

Cape 

Girardeau 

Jackson 

Carroll 

Carroll¬ 

ton 

Carter 

Van 

Buren 

O  t 

O  t 

0  / 

O  f 

O  / 

O  / 

O  / 

O  / 

O  / 

1810 

8  18  E. 

7  14  E. 

8  31  E. 

1820 _ 

8  52  E. 

10  06  E. 

8  31 

10  22  E. 

9  17  E. 

10  38  E. 

7  26 

9  33  E. 

8  45 

1830 _ 

8  58 

10  16 

8  36 

10  31 

9  24 

10  44 

7  29 

9  41 

8  51 

1840 _ 

8  58 

10  19 

8  32 

10  33 

9  23 

10  43 

7  24 

9  42 

8  48 

1850 _ 

8  49 

10  15 

8  19 

10  28 

9  13 

10  36 

7  09 

9  36 

8  36 

1860. . . 

8  32 

10  02 

7  58 

10  14 

8  54 

10  20 

6  46 

9  21 

8  16 

1870 _ 

8  10 

9  43 

7  32 

9  54 

8  31 

9  59 

6  18 

9  01 

7  51 

1880 _ 

7  33 

9  10 

6  55 

9  20 

7  53 

9  24 

5  40 

8  26 

7  15 

1890 _ 

6  51 

8  29 

6  15 

8  37 

7  12 

8  43 

5  01 

7  43 

6  35 

1900 _ 

6  23 

8  04 

5  46 

8  11 

6  43 

8  16 

4  30 

7  17 

6.  06 

1905 _ 

6  22 

8  06 

5  43 

8  12 

6  40 

8  16 

4  25 

7  18 

6  03 

1910. . . 

6  25 

8  12 

5  44 

8  17 

6  41 

8  20 

4  23 

7  23 

6  04 

1915... . 

6  30 

8  18 

5  48 

8  23 

6  45 

8  26 

4  25 

7  29 

6  09 

1920- - . 

6  26 

8  14 

5  47 

8  18 

6  40 

8  23 

4  22 

7  24 

6  08 

1925 _ 

6  19  E. 

8  06  E. 

5  43  E. 

8  10  E. 

6  33  E. 

8  17  E. 

4  16  E. 

7  16  E. 

6  04  E. 

Annual 

change  in 

1925 _ 

2'.  4  deer. 

2'.  5  deer. 

1'.8  deer. 

2'.  5  deer. 

2'.  4  deer. 

2'.  1  deer. 

2'.  1  deer. 

2'.  5  deer. 

1'.  9  deer. 

County - 

Cass 

Cedar 

Chariton 

Christian 

Clark 

Clay 

Clinton 

Cole 

Cooper 

Place..  _ 

Harrison- 

Stockton 

Keytes- 

Ozark 

Kahoka 

Liberty 

Platts- 

Jefferson 

Boon- 

ville 

ville 

• 

burg 

City 

ville 

O  / 

O  / 

O  / 

O  / 

O  f 

O  / 

O  / 

O  / 

O  / 

1820 

9  23  E. 

9  13  E. 

8  51  E. 

10  38  E. 

10  44  E. 

9  45  E. 

9  29  E 

1830 _ 

9  51  E. 

10  28  E 

9  30 

9  20 

9  00 

10  47 

10  53 

9  52 

9  35 

1840 _ 

9  53 

10  29 

9  30 

9  20 

9  00 

10  50 

10  56 

9  51 

9  35 

1850 _ 

9  49 

10  23 

9  23 

9  13 

8  49 

10  46 

10  52 

9  41 

9  28 

1860 _ 

9  37 

10  09 

9  07 

8  58 

8  30 

10  33 

10  39 

9  23 

9  12 

1870 _ 

9  19 

9  50 

8  46 

8  38 

8  05 

10  14 

10  20 

9  01 

8  51 

1880 _ 

8  48 

9  18 

8  10 

8  05 

7  26 

9  41 

9  46 

8  24 

8  15 

1890 _ 

8  07 

8  39 

7  27 

7  25 

6  42 

9  00 

9  05 

7  43 

7  33 

1900 _ 

7  43 

8  14 

7  00 

7  00 

6  11 

8  35 

8  40 

7  15 

7  06 

1905 _ 

7  44 

8  15 

7  00 

7  00 

6  08 

8  37 

8  42 

7  13 

7  06 

1910 _ 

7  50 

8  21 

7  04 

7  06 

6  09 

8  42 

8  48 

7  15 

7  10 

1915 _ 

7  57 

8  29 

7  09 

7  14 

6  12 

8  48 

8  54 

7  19 

7  15 

1920 _ 

7  54 

8  27 

7  04 

7  14 

6  06 

8  44 

8  50 

7  15 

7  11 

1925 _ 

7  48  E. 

8  23  E. 

6  56  E. 

7  10  E. 

5  56  E. 

8  37  E. 

8  43  E. 

7  09  E. 

7  04E. 

Annual 

change  in 

1925 _ 

2'.  2  deer. 

1'.  9  deer. 

2'.  5  deer. 

1'.  7  deer. 

2'.  9  deer. 

2'.  4  deer. 

2'.  4  deer. 

2'.  3  deer. 

2'.  4  deer 

County _ 

Craw- 

Dade 

Dallas 

Daviess 

Dekalb 

Dent 

Douglas 

Dunklin 

Frank- 

ford 

lin 

Place. . . 

Steel- 

Green- 

Buffalo 

Gallatin 

Mays- 

Salem 

Ava 

Kennett 

U  nion 

ville 

field 

ville 

O  f 

O  / 

O  / 

O  t 

O  / 

O  / 

O  / 

O  / 

O  / 

1800  . 

7  35  E. 

1810 

8  10  E. 

7  56 

1820  _ 

8  50  E. 

9  16  E. 

10  05  E. 

10  27  E. 

8  26 

9  14  E. 

8  08 

8  17  E. 

1830. . 

8  57 

9  10E. 

9  22 

10  15 

10  37 

8  33 

9  20 

8  12 

8  23 

1840 _ 

8  56 

9  11 

9  22 

10  18 

10  40 

8  31 

9  19 

8  07 

8  21 

1850 . . 

8  44 

9  05 

9  15 

10  13 

10  35 

8  19 

9  11 

7  53 

8  08 

1860 _ 

8  24 

8  51 

9  00 

9  59 

10  22 

7  59 

8  55 

7  31 

7  47 

1870 _ 

8  00 

8  32 

8  40 

9  38 

10  03 

7  35 

8  34 

7  04 

7  22 

1880 _ 

7  22 

8  00 

8  06 

9  03 

9  29 

6  58 

8  00 

6  28 

6  42 

1890 _ 

6  41 

7  21 

7  25 

8  20 

8  47 

6  18 

7  20 

5  49 

6  02 

1900.-. . 

6  12 

6  56 

6  59 

7  53 

8  22 

5  49 

6  54 

5  19 

5  32 

1905 _ 

6  09 

6  57 

7  00 

7  54 

8  24 

5  46 

6  54 

5  15 

5  28 

1910--. . 

6  10 

7  04 

7  06 

7  59 

8  29 

5  48 

7  00 

5  16 

5  27 

1915 _ 

6  14 

7  12 

7  13 

8  05 

8  35 

5  53 

7  08 

5  20 

5  29 

1920 _ 

6  11 

7  11 

7  11 

8  00 

8  31 

5  51 

7  08 

5  20 

5  24 

1925 _ 

6  05  E. 

7  07  E. 

7  07  E. 

7  52  E. 

8  23  E. 

5  45  E. 

7  05  E. 

5  17  E. 

5  17  E. 

Annual 

change  in 

1925. . 

2'. 2  deer. 

1'.8  deer. 

1'.9  deer. 

2' .6  deer. 

2'. 5  deer. 

2'.1  deer. 

1'.6  deer. 

1'.6  deer. 

2'. 4  deer. 

MAGNETIC  DECLINATION  IN  MISSOURI 


15 


Secular  change  of  the  magnetic  declination — Continued 


County _ 

Place. . 

Gasco¬ 

nade 

Her¬ 

mann 

Gentry 

Albany 

Greene 

Spring- 

field 

Grundy 

Trenton 

Harrison 

Bethany 

Henry 

Clinton 

Hickory 

Hermit¬ 

age 

Holt 

Oregon 

Howard 

Fayette 

O  t 

O  / 

O  / 

O  / 

O  / 

O  f 

O  / 

O  / 

O  / 

1820 _ 

9  15  E. 

10  25  E. 

8  55  E 

9  17  E. 

10  00  E. 

9  59  E. 

11  20 E. 

9  49  E . 

1830 _ 

9  22 

10  36 

9  02 

9  26 

10  10 

9  37  E. 

10  05 

11  31 

&  56 

1840 _ 

9  21 

10  40  • 

9  02 

9  28 

10  13 

9  39 

10  05 

11  35 

9  56 

1850 _ 

9  09 

10  35 

8  55 

9  23 

10  08 

9  34 

9  59 

11  31 

9  49 

1860 _ 

8  49 

10  21 

8  40 

9  09 

9  54 

9  21 

9  44 

11  19 

9  33 

1870.  . . . 

8  25 

10  01 

8  20 

8  48 

9  33 

9  03 

9  24 

11  00 

9  11 

1880. . . 

7  46 

9  26 

7  47 

8  13 

8  58 

8  30 

8  50 

10  27 

8  34 

1890.  . . . 

7  05 

8  44 

7  07 

7  30 

8  15 

7  49 

8  09 

9  46 

7  51 

1900. . . 

6  35 

8  18 

6  42 

7  03  n 

7  48 

7  24 

7  43 

9  21 

7  23 

1905 _ 

6  31 

8  20 

6  42 

7  04 

7  49 

7  25 

7  44 

9  23 

7  23 

1910. . 

6  31 

8  25 

6  48 

7  09 

7  54 

7  30 

7  50 

9  29 

7  26. 

1915- . 

6  34 

8  31 

6  56 

7  15 

8  00 

7  36 

7  57 

9  35 

7  30 

1920 . 

6  29 

8  26 

6  55 

7  10 

7  55 

7  33 

7  54 

9  31 

7  25 

1925 . 

6  22  E 

18  18  E. 

6  51  E. 

7  02  E. 

7  47  E. 

7  27  E. 

7  49  E. 

9  23  E. 

7  17  E. 

Annual 

change  in 

1925. . 

2' .4  deer. 

2'. 6  deer. 

1'.7  deer. 

2' .7  deer. 

2'. 7  deer. 

2'.1  deer. 

2'.0  deer. 

2'. 5  deer. 

2'.5'decr. 

County _ 

Howell 

Iron 

Jackson 

Jasper 

Jefferson 

Johnson 

Knox 

Laclede 

Lafav- 

ette 

Place. . . 

West- 

Ironton 

Inde- 

Carthage 

Hills- 

W  arrens- 

Edina 

Lebanon 

Lcxing- 

plains 

pend- 

• 

boro 

burg 

ton 

ence 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

1810 . . 

8  32  E. 

8  08  E. 

8  41  E. 

1820- . . 

8  47 

8  22 

8  34  E. 

9  48  E. 

9  31  E. 

8  58 

9  48  E. 

1830 _ 

8  54 

8  27 

10  43  E. 

9  56  E. 

8  40 

9  55 

9  39 

9  04 

9  56 

1840 _ 

8  52 

8  24 

10  45 

9  58 

8  37 

9  56 

9  39 

9  03 

9  57 

1850 _ 

8  42 

8  10 

10  41 

9  53 

8  24 

9  51 

9  30 

8  56 

9  52 

1860 _ 

8  24 

7  49 

10  29 

9  40 

8  02 

9  37 

9  12 

8  40 

9  38 

1870 _ 

8  01 

7  23 

10  10 

9  22 

7  37 

9  18 

8  48 

8  19 

9  18 

1880 _ 

7  26 

6  45 

9  37 

8  51 

6  57 

8  44 

8  10 

7  44 

8  44 

1890 _ 

6  46 

6  05 

8  56 

8  13 

6  17 

8  03 

7  26 

7  03 

8  02 

1900 _ 

6  18 

5  35 

8  31 

7  49 

5  47 

7  38 

6  56 

6  37 

7  36 

1905- . . 

6  17 

5  31 

8  32 

7  50 

5  43 

7  39 

6  54 

6  37 

7  37 

1910 _ 

6  21 

5  31 

8  37 

7  57 

5  42 

7  44 

6  56 

6  42 

7  42 

1915 _ 

6  28 

5  35 

8  43 

8  05 

5  44 

7  50 

6  59 

6  49 

7  48 

1920 _ 

6  28 

5  32 

8  40 

8  04 

5  39 

7  46 

6  53 

6  47 

7  44 

1925. . . 

6  24  E. 

i  5  26  E. 

8  34  E. 

8  01  E. 

5  33  E. 

7  40  E. 

6  44  E. 

6  42  E. 

7  37  E. 

A  n  n  u  a  1 

change  in 

1925. . 

1'.7  deer. 

2'.1  deer. 

2'. 3  deer. 

1'.6  deer. 

2'. 3  deer. 

2' .3  deer. 

2' . 8  deer. 

2'.0  deer. 

2'. 4  deer. 

1  Value  of  magnetic  declination  is  a  chart  value. 

60775— 25f - 3 


16 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Secular  change  of  the  magnetic  declination — Continued 


County _ 

Place _ 

Law¬ 

rence 

Mount 

Vernon 

Lewis 

Monti- 

eello 

Lincoln 

Troy 

Linn 

Linneus 

Livings¬ 

ton 

Chilli- 

cothe 

Macon 

Macon 

Madison 

Fred- 

erick- 

town 

Maries 

Vienna 

Marion 

Pal¬ 

myra 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

1810 _ 

8  05  E. 

8  11  E. 

1820 _ 

9  28  E. 

8  22 

9  19  E. 

9  27  E. 

9  29  E. 

8  24 

8  40  E. 

9  04  E. 

1830 _ 

9  20  E. 

9  37 

8  28 

9  28 

9  35 

9  36 

8  28 

8  47 

9  12 

1840 _ 

9  21 

9  37 

8  26 

9  29 

9  37 

9  36 

8  24 

8  46 

9  12 

1850 _ 

9  15 

9  26 

8  13 

9  22 

9  31 

9  28 

8  10 

8  36 

9  01 

1860 _ 

9  01 

9  07 

7  52 

9  06 

9  17 

9  11 

7  48 

8  17 

8  41 

1870 _ 

8  42 

8  42 

7  28 

8  45 

8  57 

8  48 

7  22 

7  54 

8  16 

1880 _ 

8  11 

8  03 

6  49 

8  09 

8  22 

8  11 

6  44 

7  17 

7  37 

1890 _ 

7  33 

7  20 

6  07 

7  26 

7  39 

7  28 

6  04 

6  36 

6  54 

1900 _ 

7  09 

6  49 

5  36 

6  59 

7  12 

6  59 

5  34 

6  08 

6  23 

1905 _ 

7  09 

6  46 

5  32 

6  59 

7  13 

6  58 

5  30 

6  06 

6  19 

1910 _ 

7  16 

6  47 

5  31 

7  03 

7  18 

7  01 

5  29 

6  08 

6  19 

1915 _ 

7  24 

6  49 

5  33 

7  08 

7  24 

7  05 

5  32 

6  13 

6  21 

1920 _ 

7  23 

6  43 

5  27 

7  03 

7  19 

7  00 

5  29 

6  10 

6  15 

1925 _ 

7  20  E. 

6  33  E. 

5  19  E. 

6  55  E. 

7  11  E. 

6  52  E. 

5  23  E. 

6  04  E. 

6  06  E. 

Annual 

(■ 

change  in 

1925 _ 

1'.6  deer. 

2'. 9  deer. 

2'. 6  deer. 

2'. 6  deer. 

2'. 6  deer. 

2'. 7  deer. 

2'.1  deer. 

2'. 2  deer. 

2' .8  deer 

County _ 

Place. . 

McDon¬ 

ald 

Pine- 

ville 

Mercer 

Prince¬ 

ton 

Miller 

Tuscum- 

bia 

Missis¬ 

sippi 

Charles¬ 

ton 

Moniteau 

Cali¬ 

fornia 

Monroe 

Paris 

Mont¬ 

gomery 

Mont¬ 

gomery 

City 

Morgan 

Ver¬ 

sailles 

New 

Madrid 

New 

Madrid 

1810 _ 

O  / 

O  / 

O  / 

O  / 

7  10  E. 

O  / 

O  / 

e  / 

O  / 

O  / 

7  19  E. 

1820 _ 

9  58  E. 

9  58  E. 

7  21 

9  03  E. 

9  48  E. 

8  49  E. 

9  31  E. 

7  30 

1830 . . 

10  19  E. 

10  08 

10  04 

7  23 

9  09 

9  56 

8  56 

9  37 

7  33 

1840 _ 

10  21 

10  11 

10  03 

7  17 

9  09 

9  55 

8  55 

9  37 

7  27 

1850 _ 

10  15 

10  05 

9  55 

7  02 

9  01 

9  45 

8  43 

9  30 

7  12 

1860 _ 

10  02 

9  50 

9  38 

6  39 

8  44 

9  27 

8  23 

9  14 

6  49 

1870 . 

9  44 

9  28 

9  16 

6  11 

8  23 

9  03 

7  59 

8  53 

6  21 

1880 _ 

9  14 

8  52 

8  40 

5  33 

7  47 

8  25 

7  20 

8  18 

5  44 

1890 . . 

8  37 

8  08 

7  59 

4  54 

7  05 

7  43 

6  39 

7  36 

5  05 

1900 . 

8  13 

7  40 

7  32 

4  23 

6  38 

7  13 

6  09 

7  09 

4  34 

1905 _ 

8  14 

7  41 

7  31 

4  18 

6  37 

7  11 

6  05 

7  09 

4  29 

1910 _ 

8  21 

7  45 

7  35 

4  16 

6  40  _ 

7  13 

6  05 

7  13 

4  28 

1915 _ 

8  30 

7  50 

7  41 

4  18 

6  45 

7  16 

6  08 

7  19 

4  31 

1920 _ 

8  31 

7  45 

7  38 

4  15 

6  41 

7  10 

6  03 

7  15 

4  30 

1925 . . 

Annual 
change  in 

8  29  E. 

7  36  E. 

7  32  E. 

4  10  E. 

6  35  E. 

7  02  E. 

5  55  E. 

7  09  E. 

4  26  E. 

1925 _ 

l'A  deer. 

2'.8  deer. 

2'. 2  deer. 

2'.0  deer. 

2'.3  deer. 

2'. 6  deer. 

2'. 5  deer. 

2'. 2  deer. 

1'.9  deer. 

MAGNETIC  DECLINATION  IN  MISSOURI 


17 


Secular  change  of  the  magnetic  declination — Continued 


County _ 

Newton 

Noda- 

Oregon 

Osage 

Ozark 

Pemis- 

Perry 

Pettis 

Phelps 

way 

cot 

Place  . 

Neosho 

Mary- 

Alton 

Linn 

Gaines- 

Caruth- 

Perry- 

Sedalia 

Rolla 

ville 

ville 

ersville 

ville 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

1800 _ 

7  32  E. 

1810 _ 

8  07  E. 

8  35  E. 

7  52 

7  19  E. 

1820 _ 

11  34  E. 

8  22 

9  27  E. 

8  51 

8  03 

7  32 

9  57  E. 

8  21  E. 

1830 _ 

10  37 E. 

11  45 

8  29 

9  34 

8  58 

8  06 

7  36 

10  03 

8  28 

1840 _ 

10  39 

11  49 

8  27 

9  33 

8  56 

00 

7  31 

10  03 

8  26 

1850 _ 

10  33 

11  45 

8  16 

9  22 

8  47 

7  45 

7  16 

9  57 

8  15 

1860 _ 

10  20 

11  32 

7  57 

9  03 

8  31 

7  23 

6  53 

9  42 

7  56 

1870 _ 

10  02 

11  12 

7  33 

8  40 

8  10 

6  55 

6  26 

9  22 

7  33 

1880 _ 

9  32 

10  38 

6  57 

8  02 

7  37 

6  19 

5  46 

8  47 

6  56 

1890 _ 

55 

9  56 

6  17 

7  21 

6  58 

5  40 

5  07 

8  05 

6  16 

1900 _ 

8  31 

9  30 

5  49 

6  52 

6  32  . 

5  10 

4  36 

7  39 

5  48 

1905 _ 

8  32 

9  32 

5  47 

6  49 

6  32 

5  06 

4  31 

7  40 

5  46 

1910 _ 

8  39 

9  38 

5  50 

6  50 

6  38 

5  06 

4  29 

7  45 

5  48 

1915 _ 

8  47 

9  44 

5  56 

6  54 

6  46 

5  10 

4  30 

7  51 

5  52 

1920 _ 

8  47 

9  39 

5  56 

6  50 

6  47 

5  09 

4  26 

7  47 

5  49 

1925 _ 

8  45  E. 

9  31  E. 

5  52  E. 

6  44  E. 

6  45  E. 

5  05  E. 

4  20  E. 

7  41  E. 

5  43  E. 

Annual 

change  in 

1925 _ 

1'.5  deer. 

2'.  6  deer. 

1'.7  deer. 

2'.3  deer. 

1'.  5  deer. 

1'.7  deer. 

2'. 3  deer. 

2'. 3  deer. 

2'.1  deer. 

County _ 

Pike 

Platte 

Polk 

Pulaski 

Putnam 

Ralls 

Ran- 

Ray 

Rey- 

dolph 

nolds 

Place _ 

Bowling 

Platte 

Bolivar 

Waynes- 

Union- 

New 

Hunts- 

Rich- 

Center- 

Green 

City 

ville 

ville 

London 

ville 

mond 

ville 

O  / 

O  f 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

1810 . 

8  19  E. 

8  53  E. 

8  30  E. 

1820 _ 

8  38 

16  07  E. 

9  32  E. 

9  10 

9  16  E. 

8  41  E. 

9  02  E. 

9  36  E. 

8  45 

1830 _ 

8  44 

10  17 

9  39 

9  17 

9  25 

8  49 

9  09 

9  44 

8  50 

1840 _ 

8  43 

10  20 

9  39 

9  16 

9  27 

8  48 

9  09 

9  46 

8  47 

1850 _ 

8  30 

10  16 

9  32 

9  07 

9  20 

8  36 

9  01 

9  41 

8  34 

1860 _ 

8  09 

10  04 

9  17 

8  49 

9  04 

8  16 

8  44 

9  27 

8  13 

1870 _ 

7  45 

9  45 

8  57 

8  27 

8  42 

7  51 

8  22 

9  07 

7  48 

1880 _ 

7  06 

9  13 

8  23 

7  51 

8  05 

7  12 

7  45 

8  33 

7  11 

1890 _ 

6  24 

8  32 

7  42 

7  10 

7  21 

6  30 

7  02 

7  51 

6  31 

1900 _ 

5  53 

8  07 

7  17 

6  42 

6  53 

5  59 

6  34 

7  25 

6  02 

1905 _ 

5  49 

8  09 

7  17 

6  41 

6  53 

5  55 

6  33 

7  26 

5  59 

1910 _ 

5  48 

8  14 

7  23 

6  44 

6  56 

5  55 

6  36 

7  31 

5  59 

1915 _ 

5  50 

8  20 

7  30 

6  49 

7  00 

5  58 

6  40 

7  37 

6  03 

1920 _ 

5  44 

8  17 

7  28 

6  47 

6  54 

5  52 

6  35 

7  33 

6  01 

1925 . . 

5  36  E. 

8  10  E. 

7  24  E. 

6  41  E. 

6  45  E. 

5  44  E.  • 

6  27  E. 

7  26  E. 

5  56  E. 

Annual 

* 

change  in 

1925 _ 

2'.  7  deer. 

2'. 4  deer. 

1 

l'.9decr. 

2'.1  deer. 

2'. 8  deer. 

2'.  7  deer. 

2'. 6  deer. 

2'. 4  deer. 

2'. 0  deer. 

18 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Secular  change  of  the  magnetic  declination — Continued 


County. .. . . 

Place . . . 

Ripley 

Doni¬ 

phan 

St. 

Charles 

O’Fallon 

St. 

Clair 

Osceola 

Ste. 

Gene¬ 

vieve 

Ste. 

Gene¬ 

vieve 

St. 

Francois 

Farming- 

ton 

St. 

Louis 

Clayton 

Saline 

Marshall 

Schuyler 

Lan¬ 

caster 

1810  . . 

O  / 

8  23  E. 

o  r 

8  11  E. 

O  / 

O  / 

7  36  E. 

O  / 

7  22  E. 

o  r 

7  36  E. 

O  / 

O  / 

1820 . . 

8  37 

8  27 

7  50 

7  36 

7  52 

9  59  E. 

9  59  E. 

1830 . . . . 

8  42 

8  32 

9  55  E. 

7  54 

7  41 

7  56 

10  05 

10  07 

1840 . . 

8  38 

8  29 

9  56 

7  50 

7  38 

7  53 

10  05 

10  08 

1850. . . . 

8  25 

8  15 

9  50 

7  36 

7  24 

7  39 

9  59 

10  00 

1860 . . 

8  05 

7  53 

9  36 

7  13 

7  03 

7  16 

9  44 

9  43 

1870. _ _ 

7  40 

7  28 

9  17 

6  47 

6  37 

6  50 

9  24 

9  20 

1880 . . . 

7  04 

6  48 

8  44 

6  06 

5  59 

6  10 

8  49 

8  42 

1890 . . 

6  24 

6  07 

8  04 

5  27 

5  19 

5  30 

8  07 

7  58 

1900 . . 

5  55 

5  36 

7  39 

4  56 

4  49 

4  59 

7  41 

7  28 

1905 _ _ _ 

5  52 

5  32 

7  40 

4  51 

4  45 

4  54 

7  42 

7  27 

1910 . . . 

5  54 

5  30 

7  46 

4  49 

4  44 

4  52 

7  47 

7  30 

1915 _ _ _ 

5  59 

5  31 

7  53 

4  50 

4  47 

4  53 

7  53 

7  33 

1920 _ _ 

5  58 

5  25 

7  50 

4  45 

4  43 

4  48 

7  49 

7  27 

1925 _ 

Annual  change  in 

5  54  E. 

5  17  E. 

7  45  E. 

4  39  E. 

4  37  E. 

4  40  E. 

7  42  E. 

7  17  E 

1925... . 

V.7  deer. 

2'.6  deer. 

2'.0decr. 

2'.3  deer. 

2'. 2  deer. 

2'. 5  deer. 

2'.4  deer. 

2'.9  deer. 

County . 

Place . . . . 

Scotland 

Memphis 

Scott 

Benton 

Shannon 

Emi¬ 

nence 

Shelby 

Shelby- 

ville 

Stoddard 

Bloom¬ 

field 

Stone 

Galena 

Sullivan 

Milan 

Taney 

Forsyth 

1810 . . . . 

O  / 

O  t 

7  40  E. 

O  / 

8  38  E. 

O  / 

O  / 

8  05  E. 

O  f 

O  / 

O  / 

1820 . . . 

8  58  E. 

7  52 

8  53 

9  15  E. 

8  17 

9  44  E. 

9  06  E 

1830 _ _ 

9  06 

7  55 

9  00 

9  23 

8  20 

8  50  E. 

9  53 

9  13 

1840 . . . . 

9  06 

7  50 

8  58 

9  23 

8  15 

8  50 

9  54 

9  12 

1850 _ _ _ 

8  57 

7  35 

8  46 

9  13 

8  00 

8  43 

9  47 

9  05 

1860 . . 

8  39 

7  12 

8  26 

8  55 

7  38 

8  28 

9  31 

8  50 

1870 _ _ 

8  15 

6  44 

8  02 

8  31 

7  11 

8  08 

9  09 

8  30 

1880 . . 

7  37 

6  06 

7  25 

7  53 

6  34 

7  35 

8  33 

7  57 

1890 . . 

6  53 

5  27 

6  45 

7  10 

5  55 

6  55 

7  49 

7  18 

1900 . . . 

6  23 

4  56 

6  16 

6  40 

5  24 

6  30 

7  21 

6  53 

1905 . . . . 

6  21 

4  51 

6  13 

6  38 

5  19 

6  30 

7  21 

6  53 

1910. . 

6  23 

4  49 

6  15 

6  39 

5  18 

6  36 

7  25 

6  59 

1915 . 

6  26 

4  51 

6  20 

6  42 

5  21 

6  44 

7  30 

7  07 

1920 _ _ 

6  20 

4  48 

6  19 

6  36 

5  19 

6  43 

7  24 

7  07 

1925 . 

Annual  change  in 

6  10E. 

4  42  E. 

6  15  E. 

6  28  E. 

15  15  E. 

6  41  E. 

7  16  E. 

l  7  05  E 

1925 . 

2'. 9  deer. 

2'.1  deer. 

1'.9  deer. 

2'.7  deer. 

1'.9  deer. 

1'.5  deer. 

2'.7  deer. 

1\5  deer 

1  Value  of  magnetic  declination  is  a  chart  value 


MAGNETIC  DECLINATION  IN  MISSOURI 


19 


Secular  change  of  the  magnetic  declination — Continued 


County . 

Place . 

Texas 

Houston 

Vernon 

Nevada 

Warren 

Warren- 

ton 

Washing¬ 

ton 

Potosi 

W  ayne 

Green¬ 

ville 

Webster 

Marsh¬ 

field 

Worth 

Grant 

City 

Wright 

Hart- 

ville 

O  f 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

O  / 

1810 . . . 

8  37  E. 

8  26  E. 

8  20  E. 

9  39  E. 

1820 . 

8  53 

8  18  E. 

8  41 

8  33 

9  12  E. 

10  44  E. 

9  56 

1830 . . . . 

9  00 

10  11  E. 

8  25 

8  46 

8  38 

9  18 

10  55 

10  02 

1840 . . . 

8  59 

10  14 

8  24 

8  43 

8  34 

9  17 

10  59 

10  01 

1850 . 

8  50 

10  10 

8  12 

8  30 

8  21 

9  10 

10  54 

9  53 

I860.... . . . 

8  32 

9  58 

7  52 

8  09 

8  00 

8  54 

10  40 

9  36 

1870 . . 

8  09 

9  41 

7  28 

7  44 

7  34 

8  33 

10  20 

9  14 

1880 . . 

7  33 

9  10 

6  49 

7  06 

6  57 

7  59 

9  45 

8  39 

1890.. . . 

6  52 

8  31 

6  08 

6  26 

6  17 

7  19 

9  03 

7  58 

1900. . . 

6  25 

8  07 

5  38 

5  56 

5  48 

6  53 

8  37 

7  32 

1905 . . 

6  24 

8  08 

5  34 

5  52 

5  45 

6  54 

8  39 

7  32 

1910 _ _ 

6  28 

8  14 

5  34 

5  51 

5  45 

7  00 

8  44 

7  37 

1915 . 

6  34 

8  21 

5  37 

5  54 

5  49 

7  07 

8  50 

7  44 

1920 . . 

6  33 

8  19 

5  32 

5  50 

5  47 

7  06 

8  45 

7  43 

1925 . . 

6  29  E. 

8  15  E. 

5  24  E. 

5  44  E. 

5  42  E. 

7  02  E. 

8  37  E. 

739  E. 

Annual  change  in 

1925 . . 

1'.9  deer. 

1'.9  deer. 

2'. 5  deer. 

• 

2'.2decr. 

2'. 0  deer. 

1'.8  deer. 

2'. 7  deer. 

1'.8  deer. 

Values  of  magnetic  declination ,  January  1,  1925 


County 

• 

Station 

Declina¬ 
tion,  Jan. 
1,  1925 

Latitude 

Longi¬ 

tude 

Date  of 
last 
report 

Adair 

Kirksville _ _ _ _ _ 

East 

O  / 

7  08 

O  / 

40  11.6 

O  / 

92  36.  0 

1923.  4 

Station  of  1882  i . . . 

7  05 

Station  of  1878  1 _ _ _ 

7  02 

Andrew _ _ _ 

Savannah _ _ _ 

8  28 

39  57. 1 

94  49.  8 

1923. 2 

Atchison 

Rockport _ _ _ 

9  08 

40  24.  6 

95  30.  8 

1925.  3 

Audrain 

Mexico . . . . 

6  22 

39  10.3 

91  52.0 

1923.  2 

Auxiliarv _ 

6  25 

Station  of  1878  i . . . . 

6  10 

Barry _ 

Cassville _ _ _ 

7  24 

36  42. 1 

93  51.0 

1925.  3 

Barton _ 

Lamar _ _ _ 

8  27 

37  29.  5 

94  16.3 

1923.  1 

Bates.. 

Butler . . . 

7  45 

38  15.7 

94  19.3 

1923.  9 

Benton 

Lincoln  L _ _ _ _ _  .. 

8  21 

38  23 

93  21 

Warsaw  _ _ _  .. 

7  49 

38  15.0 

93  22.  0 

1922.  9 

Station  of  1881  1 . . . . 

7  53 

Bollinger.. 

Lutesville  1 _ 

4  52 

37  18 

90  00 

Marble  Hill  . . . . . 

4  59 

37  19.0 

89  57.  8 

1910.  7 

Boone. 

Centralia  1 . . . .  . 

6  54 

39  12.8 

92  08 

Columbia _ 

6  19 

38  56.  2 

92  19.4 

1922.  9 

Station  of  1881  1 . .  .  _ 

6  17 

Station  of  1878  i . . . . . 

6  24 

Providence  1 _ _ _ 

6  32 

38  50.  4 

92  24.  0 

Buchanan _ 

St.  Joseph . . . 

8  06 

39  48.  8 

94  50.  2 

1923.  9 

Station  of  1879  i . . . 

7  48 

Butler _ 

Poplar  Bluff _ _ _  _ 

5  43 

36  43. 4 

90  24.  3 

1923.  2 

1  Station  of  1880  1 _ _ _ 

5  35 

Caldwell . 

Kingston  . . . 

8  10 

39  39.  4 

94  02 

1922.  9 

Station  of  1882  1 _ 

8  14 

Smitts  Farm  1  _ _ _ _ _ 

8  37 

39  39 

94  11 

Callaway . 

Fulton  _ _ _ _ 

6  33 

38  51 

91  57.7 

1923.  6 

Little  Aux-vasse  Creek  1 _ _ 

6  45 

38  44.  8 

92  02.  7 

Loomis  Farm  L  _ 

6  33 

38  57. 1 

91  50.0 

McCredie  1  _ _ _ 

6  38 

38  57.4 

91  55.6 

Stephens 1  . 

6  27 

38  58.  0 

92  07.  2 

Camden . . 

Decaturville  1 _ 

7  57 

37  54 

92  43 

Linn  Creek _ _  _ 

8  17 

38  04. 1 

92  44. 1 

1923.  2 

Auxiliary  1  .  ..  _ 

8  08 

38  04 

92  45 

Auxiliary  2  _ 

7  07 

38  06 

92  41 

t 

Auxiliary  3 _ 

8  02 

38  03 

92  43 

Auxiliary  4  .  .  .  _ 

8  00 

38  02 

92  42 

Auxiliary  5  .  _ 

7  19 

37  59 

92  39 

Auxiliary  6  .  .  _ 

8  10 

38  04 

92  49 

Auxiliary  7  _ 

8  12 

38  10 

92  49 

• 

Auxiliary  8  _ 

8  18 

37  58 

92  46 

Auxiliarv  9  _ 

7  50 

38  06.  0 

93.  03.  0 

Station  of  1881  L _ _ ... 

8  00 

Observations  by  Prof.  F.  E.  Nipher. 


20 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Values  of  magnetic  declination,  January  1,  1925 — Continued 


i 


County 


Cape  Girardeau. 


Gasconade, 


Gentry. 


Station 


Cape  Girardeau. 
Jackson _ 


Carter 

Station  of  1879  1 _ _  . 

Van  Buren _ _ _ 

Cass 

Harrisonville _ 

Cedar 

Stockton..  ._  . . . .  . 

Chariton 

Keytesville  _ 

Christian 

Ozark.  .  _ _ 

Clark 

Kahoka.  _  _ _ _ 

Clay 

Liberty _  _ _ 

Clinton 

Plattsburg  _ _  _  _ 

Cole 

Centertown  L  _ _ _ 

Cooper 

Jefferson  City _ _ _ 

Station  of  1881  1  _ _ ... 

Station  of  1879  1 _ _ _ 

Marion  1 _ _ _ _  .  ...  ... 

Boonville _ _  _  _ _ 

Crawford 

Clarks  Fork  U  _ _  _ 

Prairie  Home  1  _ 

Cuba  _ _ _  .  _ _ 

Dade 

Steelville  _ 

Greenfield _ _ _ _  .  _ 

Dallas 

Buffalo. _  .  _ _ 

Daviess 

Station  of  1881  i _ 

Gallatin.  .  _ _ _ _  _ * 

Dekalb  , 

Michaels  Farm  1  .  ...  ...  .  .  _ _ 

Johnsons  Farm  1 _ _ 

Dent. 

Maysville..  _.  ._  ...  _ _  ... 

Station  of  1882  1. _ _ 

Union  Star.. _ ...  ...  _ 

Salem  1  _ _ _  _ 

Douglas _ _ 

Ava...  ....... _  ....  .  _ 

Dunklin  . 

Kennett _ _  _  _ _ 

Franklin  _  . 

Goebels  Farm  1 _  _ 

Greene. . 

Grundy . . 

Harrison . 

Henry . . 

Hickory . 

Holt. . . 

Howard . 

I 

Howell . 


Gray  Summit 1 _ _ 

Newport  1 _ _ 

Pacific  1 _ 

Station  of  1880  1 _ 

Roedersville  1 _ 

Rucks  Farm  1 _ 

Union _ _ _ 

Station  of  1881  1 _ 

Washington  1 _ 

Station  of  1879  1 _ 

Wulferts  Farm  1 _ 

Bruhns  Farm  L.. . 

Canaan  1 _ 

Dry  Fork  1 _ 

Hermann _ 

Albany _ 

Station  of  1882  1 _ 

Sec.  15,  T.  63  N.,  R.  30  Wk 

Stanberry _ _ 

Auxiliary  1 _ 

Auxiliary  2 _ _ 

Auxiliary  3... . . 

Springfield _ 

Station  of  1879  1 . . 

Amicks  Farm  1 . . . 

Trenton _ 

Station  of  1882  1 _ 

Bethany _ _ _ 

Station  of  1882  1 . 

Honans  Farm  1 _ 

Clinton _ _ _ 

Windsor  1 . . . 

Hermitage . . . 

Wheatland  1 _ 

Oregon _ _ _ _ 

Clarks  Farm  1 _ _ 

Fayette . . . 

Glasgow  1.... . . . 

Pottles  Farm  i_._ . . 

Westplains . . . . 


Declina¬ 
tion,  Jan. 
1, 1925 

Latitude 

Longi¬ 

tude 

Date  of 
last 
report 

East 

O  / 

O  / 

O  / 

4  20 

37  17.9 

89  32.  9 

4  16 

37  23.  4 

89  40.  6 

1923. 1 

7  16 

39  21.  2 

93  31.  2 

1916.8 

7  19 

6  04 

37  00.  5 

91  01. 1 

1908.  7 

7  48 

38  39.  2 

94  20.  5 

1923.  2 

8  23 

37  41.  4 

93  49 

1923.  3 

6  56 

39  26.  2 

92  56.  0 

1923.  2 

7  10 

37  01.4 

93  12.3 

1922.  9 

5  56 

40  25.  4 

91  43.2 

1923.  0 

8  37 

39  13.7 

94  23.  2 

1912.  6 

8  43 

39  34.  8 

94  26.  5 

1923.  2 

6  30 

38  37.  3 

92  24.  4 

7  09 

38  33.  6 

92  10.8 

1923.  9 

7  19 

7  23 

6  31 

38  41.  5 

92  21.  9 

7  04 

38  58. 1 

92  45.  7 

1916.  8 

6  25 

38  52 

92  39 

6  34 

38  48 

92  37 

6  10 

38  03.  6 

91  24.  5 

6  05 

37  58.  5 

91  21.8 

1923.  0 

7  07 

37  24.  7 

93  50.  0 

1908.  6 

7  07 

37  38.  4 

93  05.  2 

1916.  7 

7  15 

7  52 

39  54.  9 

93  58.  6 

1922.  3 

7  46 

40  03 

93  51 

8  38 

40  01 

94  21 

8  23 

39  54 

94  21.  6 

1915.  9 

8  23 

8  27 

39  59 

94  36.  4 

5  45 

37  39 

91  31 

7  05 

36  57.  2 

92  39.  4 

1923.  9 

5  17 

36  13.6 

90  03.  8 

1925.  3 

6  23 

38  34.  0 

91  07.0 

5  39 

38  29. 1 

90  49. 1 

5  44 

38  35 

91  06 

5  35 

38  28.‘8 

90  44.  0 

5  39 

38  29.  3 

90  44.  2 

5  37 

38  25.  5 

91  12.5 

6  36 

38  39 

91  22.0 

5  17 

38  27.  4 

91  00.6 

1916.  6 

5  17 

5  00 

38  33 

91  00 

4  58 

5  45 

38  25.  7 

91  17.3 

5  38 

38  37.0 

91  32.0 

5  59 

38  19 

91  34 

5  47 

38  16 

91  38 

6  22 

38  42.  3 

91  25 

1923.  0 

7  01 

40  13.  6 

94  23.  2 

1903.  5 

7  29 

7  36 

40  16 

94  16 

10  17 

40  14 

94  31.4 

1915.9 

9  06 

9  11 

♦ 

11  31 

6  51 

37  11 

93  14.  6 

1922.  3 

7  39 

7  23 

40  13 

93  36 

7  02 

40  05.  2 

93  36.  6 

1917.  6 

7  04 

7  47 

40  15.  8 

94  04 

1917.  6 

7  44 

7  48 

40  08 

93  54 

7  27 

38  22.  4 

93  46. 1 

1925.  3 

7  48 

38  32 

93  32 

7  49 

37  56. 1 

93  18.4 

1916.  7 

7  46 

37  56.  7 

93  24.  0 

9  23 

39  59.  8 

95  09.  8 

1923.  7 

6  44 

39  02  \ 

92  55 

i 

7  17 

39  09.  9 

92  41. 1 

1903.  6 

7  03 

39  13 

92  50 

6  31 

36  56 

91  56 

6  24 

36  43.  5 

91  50.  0 

1922.  9 

1  Observations  by  Prof.  F.  E.  Nipher. 


21 


\ 

MAGNETIC  DECLINATION  IN  MISSOURI 


Values  of  magnetic  declination,  January  1,  1925 — Continued 


County 

Station 

Declina¬ 
tion,  Jan. 
1, 1925 

Latitude 

Longi¬ 

tude 

Date  of 
last 
report 

Iron.  .  _ 

Arcadia  1 _ _  _ 

East 

o  / 

5  32 

O  / 

37  35 

O  / 

90  38 

* 

Iron  ton _ _  ... 

1  19 

37  36.  5 

90  37.  7 

1923.  3 

South  Meridian  Stone . . . 

1  54 

Pilot  Knob,  base  L. _ _  _ 

9  51 

37  37 

90  37 

1880.  5 

Pilot  Knob,  top  1 _  .  _ _ _ 

2  28 

37  37 

90  37 

1880.  5 

Jackson . .  ... 

Independence/ _  ...  _ 

8  34 

39  04.  3 

94  24.4 

1912.  6 

Kansas  City _ _  _ 

9  11 

39  00.  9 

94  31.  5 

1925.  3 

Auxiliary  A..  _ _  _ 

9  10 

Station  of  1900 . . . . 

9  01 

Station  of  1879  1 _ _ 

9  04 

Jasper . . 

Carthage _ _ _ 

8  01 

37  09.  7 

94  18. 1 

1923.  0 

Jefferson _  . 

De  Soto  1  _ _ _ _ 

6  25 

38  08.  0 

90  33.  0 

Hillsboro . . . 

5  33 

38  14.0 

90  34.  0 

1912.8 

Kimmswick  1 _ _ _ _ _ 

5  24 

38  22.  0 

90  21.8 

Johnson _ _ 

Holden  1 .  _ _ 

7  51 

38  43.  2 

93  59 

Swopes  Farm  1 _ _ 

7  40 

38  53.  8 

93  33. 1 

Warrensburg _  _ 

7  40 

38  45.  5 

93  44.  3 

1923.  9 

Zimmermans  Farm  L. . . . 

8  18 

38  42 

93  32 

Knox _ 

Edina _ 

6  44 

40  10.  3 

92  10.  1 

1903.  6 

Laclede _ _ 

Lebanon _ _ _ 

6  42 

37  41.2 

92  39.  5 

1909.  5 

Station  of  1881  1 _ 

6  45 

Station  of  1879  1 _ _ 

6  49 

Lafayette _ 

Lexington..  _  _ ... _ 

7  37 

39  12.2 

93  51.  8 

1903.  5 

Station  of  1879  1 _ 

7  47 

Lawrence _ 

Mount  Vernon _ 

7  20 

37  06.  6 

93  48.  6 

1905.  4 

Lewis . . . 

Canton  L _ _ _ 

5  45 

40  09 

91  32 

Monticello _ 

6  33 

40  07.  1 

91  42.  6 

1916.  3 

Lincoln . . . 

Troy.  .  _ 

5  19 

38  58.  2 

90  59.  8 

1923.  3 

Linn . . . 

Bucklin.  _ _ _ 

7  05 

39  47.  2 

92  53.  0 

Laclede  1 _ ; _ 

7  08 

39  47 

93  12 

Linne'Us _  _ _ _ 

6  55 

39  52.  4 

93  11.  6 

1917.  6 

Station  of  1882  i _ _ _ 

6  53 

Yellow  Creek  1 _ 

7  13 

39  55 

.  93  00 

Livingston _ 

Chillicothe _ _ 

7  11 

39  47.  6 

93  32.  6 

1923.  9 

Station  of  1879  1 _ 

7  20 

Wolforts  Farm  1 _ 

7  40 

39  37 

93  43 

Macon . . 

Harris  Farm  1 _ 

6  29 

39  53.  8 

92  18.  8 

La  Plata  1 _ _ _ 

7  01 

40  01.  2 

92  29.  8 

Lewis  Farm  1 _ _ 

6  51 

39  49 

92  36 

Macon  _ 

6  52 

39  44.  8 

92  28.  5 

1923.  2 

Station  of  1882  1  _ 

6  51 

Station  of  1878  1  .  . 

6  43 

Mercyville  1 . 

7  09 

39  58 

92  40 

Madison _  ...  .. 

Fredericktown _  _ _ 

5  23 

37  34.  5 

90  19.  3 

1922.  9 

Maries . . 

Vienna..  ..  _ 

6  04 

38  11 

91  56 

1923.  8 

Station  of  1881 1 

6  08 

Marion _ 

Hannibal1 . . . . .  . . . 

5  32 

39  42 

91  22 

Palmyra  .  .  _ 

6  06 

39  47.  8 

91  31.7 

1900.  8 

McDonald . . 

Pineville..  ..  . . . . 

8  29 

36  36 

94  22.  9 

1923.  0 

Mercer _ 

Princeton.  ....  ...  .  _ 

7  36 

40  24.  1 

93  36.  8 

1923. 1 

Station  of  1882  1 

7  42 

Miller. 

Lawsons  Farm  1 _  _ 

5  53 

38  11 

92  13 

Tuscumbia _ _ _ 

7  32 

38  14.  0 

92  27.  3 

1924.  4 

Station  of  1881 1 _ 

7  29 

Mississippi _ 

Charleston.  ..  .  ..  _ _ _ _ 

4  10 

36  55.  7 

89  20.  8 

1925.  4 

Station  of  1880  1 

4  22 

Moniteau _ _ 

California  _ _  ...  ...  ..... 

6  35 

38  37.  4 

92  33.  5 

1925.  3 

Station  of  1881  1 _ 

6  39 

Monroe . . 

Long  Branch  of  Salt  River  1 _ 

6  53 

39  21.  5 

92  10 

.  _  .do.1 

6  48 

39  20.  2 

91  56.9 

Paris..  ..  _ _ _ _ _ 

7  02 

39  28.  6 

91  59.  6 

1923.  2 

Winklers  Farm  1 _ _ 

6  32 

39  36.  3 

91  59.5 

Montgomery 

Danville  1  _ _ _ _ 

6  30 

38  54.  4 

91  32.  1 

Montgomerv  City _  _ 

5  55 

38  58.  4 

91  30.  1 

1916.8 

Station  of  1882  1 

5  53 

Morgan _  . 

Soap  Creek1..  _ _ _ _ _  .  .  _ 

7  19 

38  17 

92  50 

Versailles _ .  .  _ 

7  09 

38  26.  0 

92  50.  7 

1923.  9 

Station  of  1881  1 

7  18 

Versailles  North  Base _ _ _ 

6  28 

38  29.  6 

92  48.  4 

1923.  9 

New  Madrid _ 

New  Madrid _ _  .  . .  . 

4  26 

36  35.  5 

89  32.  6 

1912.  9 

Newton _ 

Neosho.. . . . 

8  45 

36  52.  2 

94  21.  5 

1908.  6 

Nodaway _ _ 

Maryville.  . . . .  .  . 

9  31 

40  21 

94  52.3 

1924.  4 

Station  of  1879  1 

10  06 

Oregon _ ..... 

Alton _ _ _ _  _  _  _ _ 

5  52 

36  41.7 

91  25.  7 

1924.  0 

Thayer  ...  _ _ 

6  32 

36  31.  3 

91  32.6 

Osage 

Kaldeweihers  Farm  1  _ .  .... 

6  36 

38  28 

91  43 

Linn  _  . .  _ _ _  .  . 

6  44 

38  28.6 

91  50.5 

1916.  6 

Station  of  1882  1 . . .  _ _  . 

6  29 

1  Observations  by  Prof.  F.  E.  Nipher. 


22 


t 

U.  S.  COAST  AND  GEODETIC  SURVEY 


Values  of  magnetic  declination,  January  1,  1925 — Continued 


County 

Station 

Declina¬ 
tion,  Jan. 
1,  1925 

Latitude 

Longi¬ 

tude 

Date  of 
last 
report 

East 

o  / 

O  / 

O  / 

Ozark 

Gainesville _ _  _ 

6  45 

36  36.  2 

92  26.  0 

1917.  3 

Pemiscot 

Caruthersville  ...  .  _  _ 

5  05 

36  11 

89  41.  4 

1923.  0 

Perry... 

Perry ville  _  ...  .  _ _ 

4  20 

37  44.  2 

89  54 

1922.  9 

Wittenberg..  _  .  _ 

4  28 

37  39.  3 

89  33.  2 

Pettis. 

Sedalia _  ..  .  _ 

7  41 

38  42.  7 

93  13.6 

1925.  3 

Station  of  1879  i._ 

7  39 

Station  of  1878  L. 

7  57 

Phelps 

Rolla _  ...  .  _ _ 

5  43 

37  57.  2 

91  46.4 

1923.  9 

Pike.  ..  . 

Bowling  Green .  . ... 

5  36 

39  21. 1 

91  10.9 

1903.  6 

Louisiana  1  _  _  _ _ 

5  31 

39  27 

91  03 

Platte _ 

Platte  City . . .  .  _ _ 

8  10 

39  22. 1 

94  46.  5 

1923.  2 

Polk 

Bolivar.  _  ._  _ _ 

7  24 

37  37.  0 

93  23.3 

1923.  0 

Station  of  1881 1 . . 

7  23 

Voris  Farm 1  _  .  _ 

7  17 

37  38 

93  11 

Pulaski...  . 

Waynesville  _ _ _ _  _ _ 

6  41 

37  49.  7 

92  10.  5 

1923.  3 

Station  of  1905  _ 

6  39 

Putnam. 

Union  ville  _  .  .  _  _ 

6  45 

40  27.  8 

93  00.8 

1923.  9 

Station  of  1882  1 _ . 

6  52 

Wards  Farm  1 . .  . . 

7  20 

40  27 

93  06 

Williams  Farm  1 

7  30 

40  27 

93  19 

Ralls . 

New  London _ _  .  .  ..  _ 

5  44 

39  34.  4 

91  24.6 

1922.  9 

Randolph _ 

Huntsville  ..  .... 

6  27 

39  26.2 

92  32.  6 

1923.  3 

Moberly1.  _  ..  _ _ 

6  33 

39  26 

92  26 

Ray. 

Lawson.  .  .  . 

8  57 

39  26.  2 

94  12.2 

Richmond  _  _  .  _  _ 

7  26 

39  15.9 

93  58.3 

1912.  6 

Reynolds.  _ 

Centerville. .  ..  _ 

5  56 

37  26.  5 

90  56.  5 

1908.  7 

Riplev _ 

Doniphan...  .  .  _ _  .  _ _ 

5  54 

36  37 

90  49.  6 

1923.  5 

Station  of  1880  1 

5  57 

Gatewood 1  _  .....  ... 

6  04 

36  35 

91  07 

Saint  Chaides.. 

Dardenne 1...  ..  _ _ 

5  09 

38  46.  0 

90  44.  7 

Healdg  Farm1 _ _ _ _ _ 

5  26 

38  45.  3 

90  42.  3 

O'Falion 1  ..  ... _ _ 

5  17 

38  48.  5 

90  42.  0 

Saint  Clair. 

Osceola  .  _____________  ..  _ 

7  45 

38  02.  9 

93  40.  4 

1922.  9 

Sainte  Genevieve _ 

Sainte  Genevieve  ....  _ _ 

4  39 

37  58.  3 

90  04.  0 

1923.  3 

Saint  Francois _ 

Farmington 

4  37 

37  46.  6 

90  24.  8 

1922.  9 

Saint  Louis 

Clayton 1  _  . 

4  40 

38  41 

90  19 

Florissant1  _.  _  ....  ...  ._ 

5  12 

38  47 

90  20 

Kirkwood  1 

5  04 

38  36 

90  24 

Pattonville  1  . .  . 

4  31 

38  44.  2 

90  23.  8 

Rock  Road  1 _  i _ _  _ 

4  48 

38  41 

90  21 

St.  Charles  1  _ 

5  56 

38  44 

90  31 

Ten-mile  House  1 _  ... 

5  24 

38  36.  3 

90  22.  9 

University  City  _  ..  .  _. 

4  54 

38  38.  6 

90  17.  8 

1921.  7 

Saint  Louis  City. 

4  54 

38  38.  4 

90  16.0 

1915.  5 

Station  of  1886 

5  08 

Saline 

Arrow  Rock  1 .  _  ._ 

6  54 

39  02.8 

92  56.  0 

Herndon 1 _  .  .  .  ... 

-  7  55 

39  00.  2 

93  15.7 

Marshall  _  _  ...  .  ... 

7  42 

39  05.  7 

93  11.  1 

1916.8 

Station  of  1881  L 

7  32 

Sweet  Springs  1  _ _ 

8  24 

38  55 

93  29 

Schuvler  . . 

Lancaster.  .  .  ........ 

7  17 

40  30.  9 

92  31.4 

1923.  9 

Scotland  . 

Memphis  ..  ___________ 

6  10 

40  27.  6 

92  10.  3 

1922.  9 

Station  of  1878  1  .  . 

6  16 

Scott. . 

Benton  _ _ 

4  42 

37  06.  0 

89  34.  0 

1908.  7 

Shannon  ...  _ 

Eminence  ..  . .  .. 

6  15 

37  09.  2 

91  21.5 

1923.  2 

Shelby.. 

Shelby  ville _  .  ...  _ _ 

6  28 

39  48.  8 

92  03.  2 

1923.  0 

Station  of  1882  L 

6  33 

Stoddard  ..  _ 

Bloomfield.  ... 

7  18 

36  53.  0 

89  55.9 

1923.  7 

Auxiliary  A . .  . . 

7  19 

Auxiliary  1 _ 

7  23 

36  51.  2 

89  56.  0 

Auxiliary  2_.  ....  _ 

6  27 

36  53.  1 

89  58.  8 

Auxiliary  3 _ _ 

6  11 

36  51.  7 

89  51.4 

Auxiliary  4 _ ...  _  ...  _ 

6  41 

36  56.  5 

89  57.  0 

Auxiliary  5  _  _  .. 

6  57. 

36  47.  6 

89  57.  1 

Auxiliary  6  .  .  . 

5  07 

36  51.3 

89.  47.  4 

Auxiliary  7.  _ _  _ 

5  04 

36  54.  1 

89  47.  3 

Auxiliary  8. 

5  35 

36  59.8 

90  00.  9 

Auxiliary  9..  ...  .  . 

5  53 

36  40.  0 

89  57.8 

Stone  ..  _  . 

Galena  ...  .  _  _ _ 

6  41 

36  48.  2 

93  28.4 

1908.  6 

Sullivan..  _ 

Bankes  Farm  1 

7  32 

40  19 

93  03 

Milan _  ......  . 

7  16 

40  11.8 

93  07.  5 

1923.  2 

Station  of  1882  L 

7  12 

Sticlclerville  1  _ _ _ 

7  46 

40  09 

92  55 

1  Observations  by  Prof.  F.  E.  Nipher. 


MAGNETIC  DECLINATION  IN  MISSOURI 


23 


Values  of  magnetic  declination ,  January  1,  1925 — Continued 


County 

Station 

Declina¬ 
tion,  Jan. 
1925 

Latitude 

Longi¬ 

tude 

Date  of 
last 
report 

East 

O  / 

O  / 

O  / 

Taney _ _ 

Forsyth _ _  _ _ 

5  58 

36  41.  6 

93  05.  9 

1923.  4 

Auxiliary  A . . 

6  01 

Auxiliary  1 . .  . . . 

6  44 

36  39.  6 

93  07.  5 

Auxiliary  2 _ _ 

6  58 

36  40.  6 

93  01.  7 

Auxiliary  3 _ 

7  02 

36  37.4 

93  10.0 

Auxiliary  4 . . . 

6  51 

36  44.  2 

93  02.  1 

Auxiliary  5__ . . . . 

7  31 

36  43.  9 

93  11.7 

Texas. . . 

Houston. .  _ _  _ _ 

6  29 

37  19.6 

91  57.5 

1923.  0 

Station  of  1880  1 . . . 

6  33 

Vernon . . 

Nevada _ _  _ 

8  15 

37  52.4 

94  21.  5 

1923.  2 

Schell  City  1 . . . 

8  07 

38  02 

94  05 

Warren _ _ 

Warrenton _  _ 

5  24 

38  48.  6 

91  08.  5 

1923.  2 

Station  of  1882  1 _ _ 

5  20 

Station  of  1881 1 _ _ _ 

5  26 

Wright  City  1 _ _ 

6  43 

38  49.  6 

91  01.0 

Washington..  .  ..  . 

Potosi _ _ _ _ 

5  44 

37  56.  4 

90  47.  6 

1923.  9 

Station  of  1890. . . . 

5  27 

Wayne . . . 

Greenville. _ _ _ _ _ 

5  42 

37  06.  7 

90  26.  3 

1905.  4 

Piedmont1 . . . . .  .. 

6  10 

37  08 

90  41 

Webster .  ... 

Marshfield _ _ _ 

7  02 

37  20 

92  54 

1923.  7 

Worth.. . 

Grant  City _  _ _ 

8  37 

40  30 

94  25.  7 

1912.  6 

Wright  . . 

Hartville _ _ _ 

7  39 

37  15.3 

92  28.  9 

1908.  6 

1  Observations  by  Prof.  F.  E.  Nipher. 


DESCRIPTIONS  OF  STATIONS  1 

Adair  County ,  Kirksville.— The  station  is  about  ^  of  a  mile  south  from  the 
center  of  the  town  in  the  southwest  corner  of  the  pasture  on  the  west  side  of 
the  yard  of  the  dwelling  house  on  the  normal  school  experiment  farm.  It  is  75.5 
feet  east  from  the  west  pasture  fence  and  82  feet  north  of  the  south  pasture  fence. 
It  is  marked  by  a  limestone  post  6  by  6  by  24  inches,  projecting  2  inches  above 
the  ground,  and  having  a  bronze  disk  in  the  top.  The  following  true  bearings 


were  determined : 

O  / 

Top  of  courthouse  cupola  (mark) _  0  53.  1  W.  of  N. 

Top  of  south  edge  of  cupola  of  the  next  house  west  of  the 

Grimm  Hospital _  11  54.  4  E.  of  N. 


Andrew  County ,  Savannah. — The  station  is  in  the  northwest  corner  of  the  high- 
school  grounds,  about  34  mile  northwest  of  the  town’s  center.  It  is  just  south 
of  a  group  of  trees,  47.5  feet  southwest  of  the  most  easterly  tree,  72  feet  south¬ 
east  of  the  tree  on  the  corner,  and  63.2  feet  from  the  fence  on  the  west.  The 
station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  24  inches,  with  a  brass 
plate  in  the  top,  which  projects  1  inch  above  the  ground.  The  following  true 
bearings  were  determined: 


Spire  on  round  cupola  of  Mr.  Lauder’s  residence  (mark) _  50  51.  9  E.  of  N. 

Cross  on  Catholic  Church  spire _ 75  42.  8  E.  of  S. 

East  edge  of  east  chimney  on  high-school  building _  18  52.  1  E.  of  S. 

East  gable  of  Rev.  J.  S.  Kirby’s  house _  79  03.  4  W.  of  N. 


A  granite  post  5  by  5  by  14  inches,  with  a  quarter-inch  hole  in  the  top,  was 
set  303.5  feet  south  of  the  magnetic  station  to  mark  the  true  meridian.  According 
to  information  received,  this  stone  has  been  removed  and  set  again  in  cement  537 
feet  north  of  the  magnetic  station,  on  the  line  of  the  former  meridian.  From  it 
an  18-inch  maple  bears  S.  70°  45'  E.,  9  feet,  and  an  18-inch  maple  bears  N.  72° 
30'  W.,  42  feet. 


1  This  list  of  stations  includes  only  those  of  the  Coast  and  Geodetic  Survey.  The  descriptions  of  the 
stations  of  Prof.  F.  E.  Nipher  were  published  in  the  Transactions  of  the  St.  Louis  Academy  of  Sciences  from 
1880  to  1884.  They  were  in  most  cases  sufficiently  complete  and  definite  to  allow  the  general  locality  of 
the  observations  to  be  recovered,  but  with  a  few  exceptions  they  were  not  marked  in  permanent  fashion. 
The  stations  of  D.  W.  Eaton  in  Morgan  County  were  usually  described  by  reference  to  the  lines  of  the  public 
land  survey  and  were  unmarked  except  where  they  occurred  at  section  corners.  Such  information  as  is 
available  in  regard  to  the  stations  of  Nipher  or  Eaton  will  be  furnished  by  the  Coast  and  Geodetic  Survey 
to  any  one  interested  in  them. 


24 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Atchison  County,  Rockport. — The  station  is  in  the  city  park,  about  34  mile 
southeast  of  the  town’s  center.  It  is  50  feet  from  a  small  log  cabin  on  the  west 
and  134  feet  west  of  a  row  of  trees  along  the  west  side  of  the  race  track.  The 
station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  24  inches,  projecting 
about  4  inches  above  the  ground  and  having  a  brass  plate  in  the  top.  The 
following  true  bearings  were  determined: 

West  gable  of  Mr.  Andremann’s  residence,  on  hill  north  of 


park _  18  13.  9  E.  of  N. 

East  gable  of  barn  across  stream _ 49  11.  8  W.  of  N. 

Southeast  corner  of  a  barn,  near  ground _  60  46.  3  E.  of  N. 


Audrain  County ,  Mexico. — The  station  is  about  %  of  a  mile  east  of  the  pub¬ 
lic  square,  on  the  grounds  of  the  Missouri  Military  Academy.  It  is  260.5  feet 
north  from  the  northwest  corner  of  the  north  dormitory,  52.6  feet  west  from  the 
west  fence  of  the  football  field,  about  87.5  feet  east  from  the  southeast  shore 
of  the  pond,  and  123.9  feet  north  from  the  northwest  corner  of  the  gymnasium. 
It  is  marked  by  a  stone  6  inches  square  on  top,  and  is  lettered  “U.  S.  C.  &  G.  S.” 
The  following  true  bearings  were  determined : 

o  / 

East  gable  on  roof  of  house  at  1020  East  Jackson  Street  (mark)  71  01.0  W.  of  S. 
South  gable  of  the  house  on  the  farm  to  the  north  side  of  the 


academy  grounds _  20  30.  9  W.  of  N. 

Point  of  west  gable  of  annex  for  dormitory _  44  06.  0  E.  of  N. 


A  concrete  post  5  by  5  by  26  inches  was  set  182  feet  north  of  the  magnetic  sta¬ 
tion  at  the  northeast  corner  of  the  pond  to  mark  the  meridian.  It  is  4.65  feet 
west  from  the  center  of  the  trunk  of  a  small  tree.  The  auxiliary  station  was  about 
300  feet  southwest  from  the  magnetic  station. 

Barry  County,  Cassville. — The  station  is  in  the  southeastern  corner  of  the 
school  grounds.  It  is  marked  by  a  limestone  post,  4  by  6  by  30  inches,  projecting 
about  1  inch  above  the  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1905.”  The 
following  true  bearing  was  determined: 

o  t 

Cumberland  Presbyterian  Church  spire  (mark) _  50  19.  1  E.  of  S. 

Barton  County,  Lamar. — The  station  is  on  the  grounds  of  the  Lamar  College, 
northwest  of  the  main  building.  It  is  69.8  feet  from  the  west  line  of  the  campus, 
92.3  feet  from  the  north  line  of  the  campus,  and  73.3  feet  from  the  northwest 
corner  of  the  main  building.  The  station  is  marked  by  a  Carthage  marble  post, 
6  by  6  by  30  inches,  sunk  flush  with  the  surface  of  the  ground  and  lettered  “U.  S. 
C.  &  G.  S.,  1905.”  The  following  true  bearing  was  determined: 

o  / 

St.  Mary’s  Catholic  Church  spire  (mark) _ , _  87  30.  1  W.  of  N. 

Bates  County,  Butler. — The  station  is  in  the  southeast  corner  of  the  grounds 
around  the  Franklin,  or  East,  school,  about  34  mile  east  of  the  center  of  the  town. 
It  is  47.3  feet  north  of  the  fence  line  on  the  south,  61.4  feet  west  of  the  fence 
line  on  the  east,  and  181.8  feet  southeast  of  the  southeast  corner  of  the  school 
building.  The  station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  30 
inches,  projecting  9  inches  above  the  ground  and  lettered  “U.  S.  C.  &  G.  S., 
1908.”  The  marking  stone  is  reported  to  be  slightly  out  of  position,  leaning 
to  the  west.  The  following  true  bearings  were  determined: 


Northeast  corner  of  school  building,  just  above  stone  founda-  °  ' 

tion  (mark) _ _ _ 45  12.  6  W.  of  N. 

Southwest  edge  of  school  building,  just  under  roof,  on  bricks_ _  65  21.  1  W.  of  N. 


Benton  County,  Warsaw. — The  station  was  in  the  central  part  of  the  city  park, 
near  the  southwest  corner  of  the  baseball  field,  and  about  mile  northeast 
from  the  town’s  center.  It  is  about  400  feet  west  from  the  east  park  fence, 
178.5  feet  and  135.8  feet  from  two  oak  trees.  The  marking  stone  has  been 
removed. 

Bollinger  County,  Marble  Hill. — The  station  is  in  the  eastern  part  of  the  south¬ 
ern  part  of  the  field  surrounding  the  Marble  Hill  College,  south  of  the  main  build¬ 
ing  and  about  34  mile  northwest  of  the  town’s  center.  It  is  83.3  feet  west  of  the 
fence  bounding  this  field  on  the  east  and  121.4  feet  north  of  the  fence  bounding 
the  field  on  the  south.  It  is  marked  by  a  limestone  post  6  by  6  by  14  inches, 
resting  on  a  solid  ledge  of  rock  and  projecting  2  inches  above  ground.  The  top 


MAGNETIC  DECLINATION  IN  MISSOURI 


25 


of  the  post  is  lettered  “U.  S.  C.  &  G.  S.,  1910.”  The  following  true  bearings 


were  determined: 

o  / 

Spire  of  Methodist  Church  at  Lutesville  (mark) _  33  28.  0  W.  of  S. 

West  rod  at  top  of  cupola  of  Baptist  Church  at  Marble  Hill _  37  56.  6  E.  of  S. 

North  rod  at  top  of  cupola  of  county  courthouse _  63  43.  5  E.  of  S. 

Tower  of  southwest  corner  of  dormitory _  36  43.  7  W.  of  N  . 


Boone  County,  Columbia. — The  station  is  in  the  northern  part  of  the  grounds 
of  the  State  experimental  farm,  about  1  mile  south  of  the  town’s  center.  It  is 
in  the  second  inclosed  field  south  from  the  Rollins  athletic  field,  on  a  hill  about 
1,500  feet  south  from  the  university  gymnasium.  It  is  192  feet  east  from  the 
west  fence  of  the  field,  290.5  feet  a  little  east  of  south  from  the  southeast  corner 
of  the  fence  surrounding  the  sixth  hole  of  the  university  golf  links,  44  feet  a 
little  south  of  east  from  the  center  of  the  trunk  of  a  black  walnut  tree,  and  125.5 
feet  west  from  the  fence  on  the  line  between  ranges  12  and  13.  It  is  marked  by 
a  limestone  post  6  by  6  by  30  inches,  with  a  bronze  disk  set  in  the  top,  projecting 
7  inches  above  the  ground.  The  following  true  bearings  were  determined: 


o  / 

South  gable  of  university  gymnasium  (mark) _  1  56.  2  E.  of  N. 

West  gable  of  the  university  library _  4  41.  0  W.  of  N. 

Top  of  tower  of  main  university  building _  14  00.  6  W.  of  N. 

East  gable  of  a  fraternity  building _  48  08.  9  W.  of  N. 


Buchanan  County,  St.  Joseph. — The  station  is  in  a  pasture  on  the  county  farm, 
about  6  miles  northeast  of  the  town’s  center.  The  pasture  is  just  west  of  the 
road  leading  to  the  main  building.  The  station  is  40  feet  north  of  a  large  oak 
tree,  82  feet  west  of  the  fence  along  the  road,  and  149  feet  southwest  of  the  south 
gatepost  at  northeast  corner  of  pasture.  The  station  is  marked  by  a  Bedford 
limestone  post  6  by  6  by  30  inches,  lettered  “U.  S.,  1912,”  and  projecting  2 
inches  above  the  ground.  The  following  true  bearings  were  determined: 


O  / 

East  gable  of  a  house  on  hill _  20  50.  0  W.  of  N. 

Southwest  corner  of  brick  house  at  county  farm _  25  31.  8  E.  of  N. 

Left  edge  of  left  small  brick  chimney  on  county  farm  building _  53  49.4  E.  of  N. 

Northeast  corner  of  house  on  hill _  63  20.  9  W.  of  N. 

Right  edge  of  small  brick  building  near  northeast  corner  of 

pond _  53  20.  6  W.  of  N. 


Butler  County,  Poplar  Bluff. — The  station  is  in  the  northwestern  part  of  the 
reservation  for  the  new  county  fairgrounds,  about  1%  miles  south  from  the  town’s 
center.  It  is  33.8  feet  north  from  the  trunk  of  a  tree  blazed  on  the  west  side 
and  with  three  nails  driven  about  5  feet  above  the  ground  on  tile  north  side 
and  marked  “B.  M.  100.0.”  It  is  also  76.9  feet  east  from  an  iron  pipe  which 
marks  the  southwest  corner  of  the  SE.  34  of  the  SW.  34  of  section  10.  It  is 
marked  by  a  limestone  post  7  by  5  by  30  inches,  with  a  bronze  disk  set  in  the 
top,  projecting  about  4  inches  above  the  ground.  The  following  true  bearings 


were  determined: 

o  t 

Top  of  courthouse  cupola  (mark) _  26  30.5  E.  of  N. 

Center  of  top  of  smokestack  of  planing  mill,- _ _ 31  22.4  E.  of  N. 

Top  of  Iron  Mountain  Railroad  water  tank  near  the  round¬ 
house _  24  20.8  E.  of  N. 

Northwest  edge  of  railroad  roundhouse  under  eave  of  roof _  23  39.2  E.  of  N. 


Caldwell  County,  Kingston. — The  station  was  about  34  mile  northeast  from  the 
center  of  the  town  near  the  top  of  a  low  hill  north  of  the  central  part  of  a  pasture, 
which  belongs  to  S.  C.  Rogers,  and  on  the  north  side  of  the  cemetery.  The 
marking  stone  has  been  removed. 

Callaway  County,  Fulton. — The  station  is  in  the  northwestern  part  of  the 
athletic  field  of  the  Westminster  College,  about  24  mde  northwest  from  the 
town’s  center  and  northwest  from  the  football  field.  It  is  108.5  feet  east  from 
the  board  fence  on  the  west  side  of  the  grounds  and  99  feet  south  from  the  board 
fence  on  the  north  side  of  the  grounds.  It  is  marked  by  a  limestone  post  5  by 


26 


U.  S.  COAST  AND  GEODETIC  SURVEY 


7  by  24  inches,  with  a  bronze  disk  set  in  the  top,  projecting  about  1  inch  above 


the  ground.  The  following  true  bearings  were  determined: 

o  / 

South  gable  of  a  brown  house  (mark) _ 21  53.7  E.  of  N. 

Center  of  northwest  corner  of  south  or  main  college  building. _  58  18.0  E.  of  S. 
Center  of  southwest  corner  of  north  college  building. _  75  08.8  E.  of  S. 


Camden  County,  Linn  Creek. — The  station  is  on  the  side  of  a  hill  east  of  the 
Moulder  Hotel  and  near  the  southeast  corner  of  the  cemetery,  about  34  mile 
southeast  from  the  town’s  center.  It  is  54.2  feet  south  from  the  south  cemetery 
fence  and  11  feet  southwest  from  the  southeast  corner  of  the  cemetery.  It  is 
marked  by  a  limestone  post  5  by  5  by  26  inches,  with  a  bronze  disk  set  in  the 
top,  which  is  about  3  inches  above  the  ground. 

The  following  true  bearings  were  determined: 

o  / 

Top  of  monument  to  Mrs.  T.  H.  B.  Moulder  (mark) _  89  23.1  W.  of  S. 

Center  of  the  Masonic  sign  on  monument  to  Andrew  L.  Wat¬ 
son _  77  09.1  W.  of  S. 

Top  of  monument  to  Asa  C.  Ellis _  70  26.9  W.  of  N. 

Nine  auxiliary  stations  were  also  occupied.  Station  No.  1  is  in  the  north¬ 
ern  part  of  Linn  Creek  baseball  grounds,  about  34  mile  a  little  south  of  west  from 
the  principal  station.  No.  2  is  at  Damsel,  in  the  center  of  an  open  space,  about  300 
feet  northeast  from  the  general  store,  and  is  about  4  miles  northeast  from  the 
principal  station.  No.  3  is  1  mile  southeast  from  the  .principal  station,  in  the 
center  of  a  fenced  triangle  of  land,  known  as  the  Turn  Table,  at  the  southeast 
edge  of  the  turn,  along  the  road  to  Hugo.  No.  4  is  about  halfway  between  Linn 
Creek  and  Hugo  in  the  southeastern  part  of  an  open  space  on  the  east  side  of 
the  road  and  about  1  mile  southeast  from  the  Hall  School.  It  is  about  334 
miles  southeast  from  the  principal  station.  No.  5  is  at  Hugo,  in  an  open  space 
on  the  east  side  of  the  road  to  Linn  Creek,  and  about  100  feet  northwest  from 
the  schoolhouse.  It  is  7  miles  southeast  from  the  principal  station.  No.  6  is 
at  Arnholt’s  Mill,  in  the  western  part  of  a  pasture,  about  300  feet  southeast 
from  the  old  mill  building,  on  the  north  side  of  the  road  to  Linn  Creek,  through 
an  iron  gate  with  concrete  gate  posts.  It  is  334  miles  a  little  south  of  west 
from  the  principal  station.  No.  7  is  at  Purvis,  in  the  center  of  a  field  on  the 
south  side  of  the  road  to  Linn  Creek,  about  400  feet  southwest  from  the  school- 
house  and  across  the  road  from  an  unoccupied  store  building.  It  is  6 24  miles 
northwest  from  the  principal  station.  No.  8  is  at  Hahatonka,  in  the  northwest¬ 
ern  part  of  an  orchard  on  the  south  side  of  the  road  to  Linn  Creek,  about  500 
feet  southwest  from  the  post  office  and  6  miles  south  from  the  principal  station. 
No.  9  is  at  Climax  Springs,  in  the  center  of  an  open  space  on  the  west  side  of 
the  road  running  south  from  town,  about  150  feet  east  from  the  cement-lined 
spring  and  about  300  feet  southeast  from  the  Commercial  Hotel.  It  is  25  miles 
west  from  the  principal  station. 

Cape  Girardeau  County,  Cape  Girardeau. — The  magnetic  station  was  identical 
with  the  astronomic  station. 

Cape  Girardeau  County,  Jackson. — The  station  is  in  the  northwest  corner  of 
the  ground  surrounding  the  Jackson  Military  Academy,  about  1,200  feet  south¬ 
west  of  the  courthouse.  It  is  176.2  feet  northwest  of  the  nearest  point  on  the 
academy  flagpole  and  182.3  feet  north-northwest  of  the  northwest  corner  of  the 
academy  building.  It  is  marked  by  a  Bedford  limestone  post  5  by  5  by  30  inches, 
projecting  about  934  inches  above  the  ground  and  lettered  “U.  S.,  1908.”  The 
stone  is  reported  to  have  been  moved.  The  following  true  bearings  were  deter¬ 
mined  : 

O  / 

Pestle  in  mortar  sign  on  cupola  over  S.  E.  Wood’s  drug  store.  23  40.8  E.  of  N. 


Spire  of  First  Presbyterian  Church _  9  20.9  W.of  N. 

Courthouse  cupola _  40  31.4  E.  of  N. 

Southeast  corner  of  Judge  Miller’s  residence,  under  eave  of 

roof _  47  47.9  W.  of  N. 

West  point  at  top  of  roof  of  M.  E.  Church  South _ 61  57.5  E.  of  N. 


Carroll  County,  Carrollton. — The  station  is  in  the  northwest  corner  of  the  city 
park,  about  %  mile  northwest  from  the  town’s  center.  It  is  88.2  feet  east  from 
the  west  park  fence  and  144.3  feet  south  from  the  north  park  fence.  It  is  marked 
by  a  limestone  post  5  by  5  by  26  inches,  with  a  bronze  disk  set  in  the  top,  project- 


MAGNETIC  DECLINATION  IN  MISSOURI 


27 


ing  about  4  inches  above  the  ground.  The  following  true  bearings  were  deter¬ 
mined  : 

o  / 


South  gable  of  a  farmhouse  (mark) _ _ _  19  17.  8  E.  of  N. 

Upper  northwest  corner  of  the  house  across  the  road  from 

the  southeast  corner  of  the  park _ 51  57.  4  E.  of  S. 

Southeast  edge  of  upper  iron  band  of  the  brick  kiln _  40  04.  5  W.  of  S. 


Carter  County,  Van  Buren. — The  station  is  on  the  west  slope  of  the  hill  on  the 
property  of  Mrs.  Carter,  about  1,500  feet  east  of  the  center  of  the  town.  It  is 
just  south  of  the  road  running  east  from  the  northeast  corner  of  the  courthouse 
square,  about  1,200  feet  from  that  corner.  It  is  92.5  feet  south  of  the  fence  on 
the  north  side  of  the  road  and  67.7  feet  east  of  the  last  inclosed  field  on  the  south 
side  of  the  road.  The  station  is  marked  by  a  white  glass  quart  bottle,  with  the 
neck  about  3  inches  below  the  surface  of  the  ground.  The  following  true  bearings 
were  determined: 

O  f 


Rod  on  steeple  of  Baptist  Church  (mark) _  59  34.  4  W.  of  N. 

Methodist  Church  steeple _  75  31.  7  W.  of  S. 

South  point  on  gable  of  livery  and  feed  stable _  84  09.  9  W.  of  N. 


Cass  County,  Harrisonville. — The  station  is  in  the  southwest  corner  of  the 
high-school  grounds,  7  feet  from  the  south  side  and  43  feet  from  the  west  side  of 
the  grounds.  It  is  marked  by  a  white  limestone  post  6  inches  square  on  top  and 
lettered  “U.  S.  C.  &  G.  S.,”  extending  2  inches  above  the  ground.  A  hole  in  the 
top  marks  the  center.  The  following  true  bearings  were  determined: 


Southeast  corner,  near  ground,  of  frame  house  of  William  ° 


Crosswhite  (mark) _  47  30.  3 

Northwest  corner  of  brick  house  of  Frank  Chilton _ 78  11.  7 

Northwest  corner  of  school  foundation _ 41  19.  9 

Southwest  corner  of  school  foundation _ 53  17.  9 


W.  of  S. 
W.  of  S. 
E.  of  N. 
E.  of  N. 


Cedar  County,  Stockton. — The  station  is  in  the  northeastern  corner  of  the  pasture 
belonging  to  the  county  poor  farm,  about  lj34  miles  southwest  from  the 
town’s  center.  This  pasture  is  the  fourth  field  from  the  front  yard  of 
the  brick  building  on  the  poor  farm.  It  is  84  feet  west  from  the  northwest 
corner  of  the  field  to  the  southeast  and  163  feet  south  from  the  north  pasture 
fence  along  the  road  to  Stockton.  It  is  marked  by  a  limestone  post  5  by  5  by  27 
inches,  with  a  bronze  disk  set  in  the  top,  wihch  projects  about  4  inches  above 
the  ground.  The  following  true  bearings  were  determined: 


Upper  northwest  corner,  under  roof  of  brick  building  on  ° 

county  poor  farm  (mark) _ 89  15.  3  E.  of  N. 

Upper  southwest  corner,  under  roof  of  wooden  building  on 

county  poor  farm _  86  33.  9  E.  of  S. 

East  gable  of  a  farmhouse _  12  40.  3  W.  of  N. 

Chariton  County,  Keytesville. — The  station  is  in  the  southeast  corner  of  the 
grounds  surrounding  the  high  school.  It  is  120.2  feet  west  of  the  fence  along 
the  sidewalk  to  the  east  across  the  road  and  237.6  feet  a  little  east  of  south  of 
the  southeast  corner  of  the  high-school  building.  It  is  also  44.6  feet  southeast 
of  the  center  of  the  trunk  of  a  tree  about  334  feet  in  diameter.  The  station  is 
marked  by  a  sandstone  post  6  by  6  by  30  inches,  projecting  about  7  inches  above 
the  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1908,”  on  the  south  side.  A  hole  in 
the  top  marks  the  center.  The  following  true  bearings  were  determined : 

Southwest  corner  of  school  building  just  above  stone  founda-  °  ' 


tion  on  bricks  (mark) _  19  02.9  W.  of  N. 

Northeast  corner,  just  under  roof,  of  J.  W.  Agee’s  house _ 41  41.8  W.  of  N. 

East  gable  point  on  the  roof  of  the  Whitesides  House _ 63  13.0  W.  of  S. 

Base  of  spire  on  cupola  of  high  school _  9  36.2  W.  of  N. 


Christian  County,  Ozark. — The  station  was  south  of  the  central  part  of  the  city 
lot,  which  was  at  one  time  the  old  public  square  and  which  is  now  the  northern 
part  of  the  town  park.  It  was  about  34  of  a  mile  northwest  of  the  center  of  the 
town.  The  marking  stone  is  reported  to  have  been  removed. 

Clark  County,  Kahoka. — The  station  is  near  the  southeast  corner  of  the  court¬ 
house  yard,  34  mile  northeast  of  the  town’s  center.  It  is  151.2  feet  southeast  of 
the  southeast  corner  of  the  courthouse,  71.4  feet  north  of  the  cement  walk  across 


28 


U.  S.  COAST  AND  GEODETIC  SURVEY 


the  street  to  the  south,  and  89  feet  west  of  the  cement  walk  across  the  street  to 
the  east.  It  is  marked  by  a  marble  post  6  by  6  inches,  projecting  6  inches  above 
ground,  and  center  marked  by  a  Geological  Survey  bronze  disk  showing  elevation. 
The  following  true  bearings  were  determined: 


Southwest  corner  of  brick  mill _  12  16.3  E.  of  N. 

Left  edge  of  iron  post  at  corner  of  Exchange  Bank _  89  59.0  W.  of  N. 

Right  edge  of  Exchange  Bank _  82  39.9  W.  of  N. 

East  gable  of  Presbyterian  Church _  65  10.4  W.  of  N. 


A  similar  stone  297.1  feet  to  the  north  marks  the  true  meridian.  The  north 
stone  is  10  feet  south  of  a  row  of  posts  and  6  feet  north  of  a  tree  about  on  the 
meridian  line. 

Clay  County,  Liberty. — The  station  is  near  the  southeast  corner  of  a  large  pas¬ 
ture  belonging  to  Silas  Conway,  about  1  mile  east  and  } mile  south  of  the  town’s 
center.  It  is  49  feet  east  of  the  east  foundation  of  the  ruins  of  an  old  brick  house, 
94  feet  northwest  of  a  large  sycamore  tree  which  is  at  the  junction  of  a  rail  and 
wire  fence,  211  feet  west  and  a  little  north  from  the  southeast  corner  of  the 
pasture,  188  feet  west  of  a  wire  fence,  and  175  feet  southwest  of  a  spring  on  the 
cliff  south  of  Rush  Creek.  It  is  between  Rush  Creek  and  a  ravine,  on  a  hill 
which  extends  toward  the  southeast  from  the  station.  The  station  is  marked  by 
a  Bedford  limestone  post  6  by  6  by  30  inches,  projecting  6  inches  above  the  ground 
and  having  a  brass  plate  in  the  top.  The  following  true  bearings  were  deter¬ 
mined  : 

O  / 


Center  of  pillar  farthest  to  left  on  dormitory  at  the  college _  60  35.9  W.  of  N. 

South  gable  of  a  two-story  house  across  valley _  7  57.5  E.  of  N. 

South  gable  of  Mr.  Robeson’s  house  on  hill _  53  48.8  E.  of  N. 

West  gable  of  Mrs.  Musbach’s  house  in  valley _ 79  46.5  E.  of  NY 

Right  edge  of  Jewell  Hall’ at  the  college _  65  54.8  W.  of  N. 


Clinton  County,  Plattsburg. — The  station  was  about  1  mile  north  of  town  on 
the  property  of  Mrs.  Anna  P.  Vance.  It  was  206.7  feet  from  the  east  fence, 
108.1  feet  from  the  west  hedge  fence,  and  386.2  feet  from  the  southwest  corner  of 
Mrs.  A.  P.  Vance’s  brick  house.  The  marking  stone  is  reported  to  have  been 
removed. 

Cole  County,  Jefferson  City. — The  station  is  in  the  southwestern  part  of  the 
infield  within  the  race  track  at  Houchin’s  Park,  which  is  owned  by  J.  A.  Houchin, 
and  is  about  13d>  miles  south  from  the  town’s  center.  It  is  101  feet  northwest 
and  198.5  feet  northeast  from  the  inside  fence  of  the  race  track.  It  is  marked 
by  a  limestone  post  5  by  7  by  30  inches,  with  a  bronze  disk  set  in  the  top,  pro¬ 
jecting  about  5  inches  above  the  ground. 

The  following  true  bearings  were  determined: 


Southwest  gable  of  the  carriage  house  (mark) _  16  49.  3  E.  of  N. 

East  lightning  rod  on  largest  stable _  22  27.  4  E.  of  N. 

Top  of  band  stand  at  the  race  track _ 4  23.  2  W.  of  N. 

Top  of  judge’s  stand  at  the  race  track _  12  30.  8  W.  of  N. 


A  limestone  post  about  444  feet  distant  with  a  cross  in  the  top  projecting 
about  5  inches  above  the  ground  marks  the  north  end  of  a  meridian  line.  It  is 
84.6  feet  northeast  from  the  north  corner  of  the  band  stand. 

Cooper  County,  Boonville. — The  station  is  in  the  central  part  of  Harley  Park 
near  the  top  of  a  ridge  extending  east  and  west,  about  1  mile  west  from  the 
town’s  center.  It  is  53.7  feet  north  from  a  horizontal  row  of  enameled  brads 
about  3  feet  above  the  ground  in  the  trunk  of  a  large  tree,  75.2  feet  a  little  north 
of  east  from  a  vertical  row  of  enameled  brads  about  3  feet  above  the  ground  in 
the  trunk  of  a  large  tree,  and  about  470  feet  southwest  from  a  small  Indian 
mound  on  the  east  end  of  the  ridge.  It  is  marked  by  a  limestone  post  5  by  5 
by  27  inches,  with  a  bronze  disk  set  in  the  top,  projecting  about  3  inches  above 
the  ground.  The  following  true  bearings  were  determined: 


o  r 

Top  of  Evangelical  Church  steeple  (mark) _ 81  46.  1  E.  of  N. 

Cross  on  Episcopal  Church  steeple _  79  34.  8  E.  of  N. 

Top  of  the  water  tower  at  the  training  school _  83  00.  8  E.  of  N. 

Top  of  the  training-school  cupola _ 83  30.  5  E.  of  N. 


MAGNETIC  DECLINATION  IN  MISSOURI 


29 


Crawford  County,  Steelville. — The  station  was  in  the  public  school  grounds, 
86.8  feet  from  the  north  fence,  110.1  feet  from  the  east  fence,  and  126.9  feet  from 
the  northwest  corner  of  the  school  building.  The  marking  stone  is  reported  to 
have  been  removed. 

Dade  County,  Greenfield.— The  station  is  in  the  northern  part  of  the  ground 
surrounding  the  public  school  and  about  ^  of  a  mile  northeast  of  the  center  of 
the  town.  It  is  27  feet  south  of  a  hedge  on  the  northern  boundary  of  the  grounds, 
86  feet  west  of  a  hedge  on  the  eastern  boundary,  and  204  feet  a  little  east  of 
north  from  the  northwest  corner  of  the  northern  extension  of  the  school  building. 
It  is  also  58.1  feet  east  of  the  center  of  the  trunk  of  the  only  tree  in  the  northwest 
corner  of  the  ground.  The  station  is  marked  by  a  white  glass  bottle,  6  by  13 
inches,  with  the  neck  2  inches  below  the  surface  of  the  ground.  The  following 


true  bearings  were  determined: 

O  / 

Cupola  on  Presbyterian  Church  (mark) _ 67  16.  1  W.  of  S. 

Northwest  corner  of  northern  extension  of  school  building, 

just  above  foundation _  5  28.  5  W.  of  S. 

Center  of  sector-shaped  front  piece  on  roof  of  opera  house 42  14.  0  W.  of  S. 


Dallas  County,  Buffalo. — The  station  is  in  the  northern  part  of  a  piece  of  ground 
known  as  the  Reunion  ground,  at  the  south  end  of  the  street  on  the  west  side  of 
the  courthouse,  and  about  }/i  mile  southeast  from  the  town’s  center.  It  is 
124.7  feet  south  from  the  north  fence  of  the  ground  and  84.2  feet  northwest 
from  a  rectangular  blaze  about  3  feet  above  the  ground  in  the  trunk  of  a  large 
oak  tree.  A  nail  is  driven  above  the  blaze.  It  is  marked  by  a  rough  limestone 
rock  3  by  5  by  16  inches,  with  a  cross  cut  in  the  top,  which  projects  about  1 
inch  above  the  ground.  The  following  true  bearings  were  determined: 


O  / 

Top  of  courthouse  cupola  (mark) _  3  07.  1  W.  of  N. 

Top  of  east  gable  of  house  at  southeast  corner  where  road  on 

west  side  of  courthouse  meets  Reunion  ground _ 61  19.  0  W.  of  N. 

Southwest  corner  of  Buffalo  cafe,  under  roof _  3  27.  6  W.  of  N. 


Daviess  County,  Gallatin. — The  station  is  at  the  north  end  of  a  large  orchard 
on  the  property  of  Frank  Woodruff,  about  13^2  miles  west  of  the  town.  It  is  in 
the  southeastern  corner  of  the  Woodruff  property  and  143.6  feet  from  the  south 
fence  and  about  1,200  feet  from  the  road  to  town.  It  is  just  west  of  a  bog  and 
268.5  feet  southwest  of  a  well.  The  station  is  marked  by  a  sandstone  post, 
which  is  7  inches  square  oh  top,  lettered  “U.  S.  C.  &  G.  S.,”  with  a  hole  in  its 
center.  The  following  true  bearing  was  determined: 

O  f 

Pole  on  the  standpipe _  78  49.  6  E.  of  N. 

Dekalb  County,  Maysville. — The  station  is  near  the  south  edge  of  the  high- 
school  grounds,  just  west  of  the  center  of  the  town.  It  is  37.4  feet  north  of  the 
cement  walk  on  the  south  side  of  the  grounds,  28.6  feet  east  of  the  cement  walk 
leading  to  the  school  building,  148  feet  south  of  the  southeast  corner  of  the 
building,  and  directly  in  line  with  the  east  side  of  the  building.  It  is  marked 
by  a  cement  post  12  by  12  by  20  inches,  with  a  bronze  disk  projecting  1  inch  above 
ground.  The  following  true  bearings  were  determined: 


O  / 

Chimney  on  distant  house  (mark) _ .8  33.  3  W.  of  S. 

Lower  southwest  corner  of  high  school _ 23  15.  7  W.  of  N. 

Lower  southeast  corner  of  high  school _  0  23.  3  E.  of  N. 

High-school  cupola _ _ _  12  09.5  W.  ofiN 


Dekalb  County,  Union  Star. — The  station  is  on  the  high-school  grounds,  a  little 
north  of  the  town’s  center.  It  is  115  feet  east  of  the  cement  walk  leading  up  to 
the  high-school  building,  205  feet  southeast  of  the  southeast  corner  of  the  same 
building,  and  54.5  feet  west  of  the  fence  on  the  east.  The  station  is  not  marked. 

Douglas  County,  Ava—  The  station  is  in  the  northwestern  corner  of  the  baseball 
grounds,  immediately  east  of  the  picnic  grounds,  and  about  3^  mile  a  little  south 
of  west  from  the  center  of  the  town.  The  ground  is  owned  by  Messrs.  Williams 
and  Pettit.  The  station  is  98  feet  east  of  the  fence  on  the  west  and  193  feet  south 
of  the  fence  on  the  north  side  of  the  baseball  grounds.  The  station  is  marked 
by  a  Bedford  limestone  post  6  by  6  by  30  inches,  projecting  about  8  inches  above 


30 


U.  S.  COAST  AND  GEODETIC  SURVEY 


the  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1908. ”  The  following  true  bearings 
were  determined: 


Base  of  flagstaff  on  cupola  of  high  school  (mark) _  70  37.  4  E.  of  N. 

Spire  on  Methodist  Church _ 67  58.  9  E.  of  S. 

Upper  northwest  corner  of  courthouse _  79  01.  7  E.  of  S. 


Dunklin  County,  Kennett. — The  station  is  in  the  northwestern  corner  of  the 
infield  within  the  race  track  at  the  county  fair  grounds,  about  1  mile  south  from 
th§  town’s  center.  It  is  79.9  feet  south  from  the  north  side  of  the  fence  on  the 
inside  of  the  race  track  and  123.5  feet  east  from  the  curve  at  the  northwest  corner 
of  the  same  fence.  It  is  marked  by  a  limestone  post  7  by  5  by  33  inches,  with  a 


bronze  disk  set  in  the  top,  which  projects  about  3  inches  above  the  ground. 
The  following  true  bearings  were  determined: 

°  ' 

Top  of  town  water  tank  (mark) _ 45  17.  5  E.  of  N. 

Upper  southwest  corner  of  Floral  Hall,  under  eave  of  roof _ 16  19.  2  E.  of  S. 

South  gable  of  a  barn  across  the  road  to  the  north _ 21  29.  8  E.  of  N. 


A  cement  block  6  by  6  by  15  inches,  with  a  cross  cut  in  the  top,  setting  flush 
with  the  ground,  marks  the  south  meridian  point,  which  is  about  320  feet  distant, 
24  feet  north  from  the  inside  fence  of  the  race  track,  and  147.2  feet  a  little  south 
of  west  from  the  center  of  a  telephone  pole  about  0.9  foot  in  diameter. 

Franklin  County,  Union. — The  station  is  in  the  northeastern  part  of  the  grounds 
of  the  new  county  poor  farm,  about  z/i  mile  northwest  from  the  town’s  center. 
It  is  62.8  feet  south  from  the  north  boundary  fence  of  the  grounds  and  208.6 
feet  northwest  from  the  northeast  corner  of  the  foundation  of  the  poor-farm 
building.  It  is  marked  by  a  limestone  post  5  by  7  by  30  inches,  with  a  bronze  disk 
set  in  the  top,  projecting  about  6  inches  above  ground.  The  following  true  bear¬ 


ings  were  determined: 

o  / 

Top  of  Rock  Island  Railroad  water  tank  (mark) _ 81  08.  9  E.  of  N. 

West  gable  of  Rock  Island  Railroad  depot _  83  15.  4  E.  of  N. 

Lower  southwest  corner  of  Hambro  factory  of  Hamilton  Brown 

Shoe  Co _  81  58.  9  E.  of  N. 

Lower  northeast  corner  of  foundation  of  county  poor-farm 

building _  38  25.  0  E.  of  S 


Gasconade  County,  Hermann. — The  station  is  on  Blusts  Hill,  southeast  of  the  de¬ 
pot.  on  land  owned  by  the  city.  It  is  56  feet  south  of  the  fence  running  east  and 
west  across  the  hill  and  is  marked  by  a  gray  limestone  post  6  inches  square  on  top 
and  lettered  “  U.  S.  C.  &  G.  S.”  (the  lettering  gone  except  U),  extending  4  inches 
above  the  ground.  The  following  true  bearings  were  determined: 


Courthouse  spire  (mark) _ , _  62  34.2  W.  of  N. 

Pole  (tree)  on  distant  ridge _ 21  17.2  W.  of  N. 

Flagstaff  of  Stone  Hill  Wine  Co _  58  14.8  W.  of  S. 

Catholic  Church  cross _  87  51.7  W.  of  S. 

Spire  of  Methodist  Church _  70  03.6  W.  of  N. 


Gentry  County,  Albany. — The  station  is  in  the  southwestern  part  of  the  grounds 
of  the  old  Central  Christian  College.  It  is  141  feet  from  the  west  fence,  134.2  feet 
from  the  south  fence,  and  160.3  feet  from  the  southwest  corner  of  the  college 
building.  It  is  marked  by  a  sandstone  with  a  drill  hole  in  the  center  of  its  top, 
which  is  lettered  “U.  S.  C.  &  G.  S.,  1903,”  and  is  sunk  3  inches  below  the  surface 
of  the  ground.  The  following  true  bearings  were  determined: 


Southwest  corner  of  the  college  building _  10  00.0  E.  of  N. 

North  edge  of  chimney  on  house  of  E.  L.  McCurry _  88  32.6  E.  of  N. 


Gentry  County,  Stanberry. — The  station  is  near  the  northwest  corner  of  the  high- 
school  grounds,  3^  mile  north  of  the  town’s  center.  It  is  in  line  with  the  row  of 
trees  on  the  north  side  of  the  grounds,  23  feet  west  of  the  line  of  the  west  side  of 
the  high  school  produced  northward,  96.9  feet  northwest  of  the  northwest  cor¬ 
ner  of  the  high  school,  48.8  feet  east  of  the  cement  walk  on  the  west  side  of  the 
grounds,  and  62.6  feet  south  of  the  brick  walk  across  the  street  to  the  north. 


MAGNETIC  DECLINATION  IN  MISSOURI 


31 


The  station  is  marked  by  a  cement  post  6  by  6  by  24  inches,  with  a  cross  cut  in 
the  top  and  set  flush  with  the  ground. 

The  following  true  bearings  were  determined: 


O  / 

North  gable  of  Methodist  Episcopal  Church _  0  00.5  E.  of  S. 

Flagpole  on  cupola  of  high  school _ * _  8  13.0  E.  of  S. 

Northeast  corner  of  high-school  basement _  45  06.7  E.  of  S. 

East  gable  of  a  house - -  50  59.0  W.  of  N. 


Auxiliary  station  No.  1  was  in  a  pasture  3  miles  east  and  34  mile  south  of  the 
primary  station,  No.  2  was  in  a  pasture  3  miles  south  and  134  miles  west  of  it, 
and  No.  3  was  in  a  pasture  3  miles  north  and  z/i  mile  west  of  it. 

Greene  County,  Springfield. — The  station  is  in  the  extreme  northeast  section  of 
the  national  cemetery,  which  is  about  334  miles  southeast  of  the  square  in  the 
south  side  of  town.  It  is  68  feet  from  the  fence  on  the  north,  90  feet  from  the 
fence  on  the  east,  and  45  feet  from  the  stone  wall  on  the  west.  The  station  is 
marked  by  a  hard  limestone  post  with  a  brass  marker  in  the  top,  7  by  7  by  27 
inches,  sunk  flush  with  the  surface  of  the  ground.  The  following  true  bearings 


were  determined : 

O  / 

North  gable  of  barn  34  mile  away _ 89  17.6  E.  of  S. 

West  gable  of  barn  34  mile  away _  80  49.4  E.  of  S. 

Southwest  edge  of  house  300  feet  away _ 46  34.1  W.  of  N. 

Northeast  brick  corner  of  superintendent’s  lodge,  under  cornice.  85  32.9  W.  of  N. 

Southeast  edge  of  base  of  Confederate  Monument  just  over  top 

of  stone  wall _  26  57.1  W.  of  S. 


Grundy  County ,  Trenton. — The  station  is  in  the  southwestern  part  of  the  infield 
within  the  race  track  at  the  county  fairgrounds,  about  134  miles  north  of  the 
center  of  the  town.  It  is  162  feet  east  of  the  inside  fence  surrounding  the  race 
track,  108  feet  southeast  of  the  southeast  corner  of  the  fence  surrounding  the 
judges’  stand,  and  about  280  feet  northwest  from  a  pond.  It  is  marked  by  a 
limestone  post  6  by  6  by  28  inches,  lettered  “U.  S.  C.  &  G.  S.,  1917,”  on  top, 
and  projecting  about  4  inches  above  the  ground.  The  following  true  bearings 


were  determined: 

o  / 

Top  of  Third  Ward  school  cupola  (mark) _  86  06.6  W.  of  S. 

Top  of  United  Brethren  Church  steeple _ 83  17.8  W.  of  S. 

Top  of  roof  of  octagonal  exhibition  building _  4  31.5  W.  of  N. 

Center  of  top  smokestack  of  the  Rock  Island  Railroad  shops- _  15  39.4  W.  of  S. 


Harrison  County,  Bethany. — The  station  is  about  1  mile  southwest  of  the  center 
of  the  town  at  the  county  fairgrounds  in  the  northern  part  of  the  infield  within 
the  race  track.  It  is  130.1  feet  south  from  the  inside  fence  surrounding  the 
race  track  and  207.1  feet  southeast  from  the  nearest  point  of  the  judges’  stand. 
It  is  marked  by  a  limestone  post  6  by  6  by  30  inches,  with  a  bronze  disk  set  in 
the  top,  which  projects  about  5  inches  above  the  ground.  The  following  true 
bearings  were  determined: 


West  gable  of  ticket  office  at  north  gate  (mark) _  28  28.9  E.  of  N. 

West  gable  of  sheep  and  hog  barn _ 63  17.4  E.  of  N. 

Point  of  south  gable  of  cattle  barn _  77  50.7  E.  of  N. 

Cupola  of  the  Webster  school _  16  11.9  E.  of  N. 


Henry  County,  Clinton. — The  station  was  in  the  park  at  White  Sulphur  Springs, 
in  the  northern  part  of  the  grounds,  about  330  feet  north  of  the  drive  to  the 
Springs  Hotel  and  33  feet  west  of  the  road  to  the  hitching  ground.  It  was  80.5 
feet  southeast  of  a  white-oak  tree  and  73.5  feet  a  little  north  of  east  from  a  second 
tree.  The  station  marker  is  reported  to  have  been  removed. 

Hickory  County,  Hermitage. — The  station  is  in  the  southeastern  part  of  the 
infield  within  the  race  track  at  the  old  county  fairgrounds,  about  34  mile  south¬ 
east  from  the  town’s  center.  It  is  about  270  feet  from  the  inside  edge  of  the  race 
track  to  the  east  and  159  feet  from  the  same  to  the  south.  It  is  marked  by  a 
limestone  post  5  by  5  by  24  inches,  with  a  bronze  disk  set  in  the  top,  projecting 
about  3  inches  above  the  ground. 


32 


U.  S.  COAST  AND  GEODETIC  SURVEY 


The  following  true  bearings  were  determined: 

O  / 


Top  of  schoolhouse  cupola  (mark) _ 31  41.7  W.  of  N. 

East  gable  of  the  Wilson  Hotel _ 43  18.2  W.  of  N. 

Top  of  a  monument  in  cemetery _  84  35.4  E.  of  N. 


A  rough  field  stone  7  by  8  by  18  inches  was  set  about  192  feet  distant,  with 
a  cross  in  the  top,  projecting  1  inch  above  the  ground,  to  mark  the  north  end  of 
a  meridian  line.  It  is  100  feet  south  from  the  north  fence  of  the  grounds  and 
about  150  feet  from  the  inside  edge  of  the  race  track  to  the  east. 

Holt  County ,  Oregon. — The  station  is  in  the  city  park,  about  mile  north  of  the 
town’s  center.  It  is  in  the  northwest  corner  of  the  park  on  the  hill,  104  feet 
east  of  the  west  fence,  293  feet  south  of  the  north  fence,  328  feet  from  the  north¬ 
west  corner  of  the  grounds,  and  50  feet  northeast  of  a  large  oak  tree.  The 
station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  24  inches,  projecting 


2  inches  above  the  ground,  and  having  a  brass  plate  in  the  top.  The  following 
true  bearings  were  determined: 

O  / 

Spire  on  cupola  of  A.  H.  Bailey’s  barn _ 45  20.8  E.  of  N. 

Spire  on  cupola  of  A.  H.  Bailey’s  corn  shed _ 47  13.9  E.  of  N. 

West  edge  of  west  brick  chimney  on  Mrs.  Spoerle’s  house  on  hill_36  58.6  W.  of  S. 

North  gable  of  Lee  Green’s  house  on  hillside _ 42  34.4  W.  of  S. 

North  edge  of  north  brick  chimney  on  Philip  Rush’s  house _ 88  18.0  W.  of  S. 


Howard  County ,  Fayette. — The  station  is  on  the  grounds  of  Central  College, 
which  is  situated  on  the  hill  in  the  northern  part  of  town.  It  is  284  feet  almost 
directly  north  of  the  northeast  corner  of  Science  Hall.  It  is  marked  by  a  limestone 
post  6  inches  square  on  top,  which  projects  3  inches  above  the  ground  and  is 
lettered  “U.  S.  C.  &  G.  S .,  1903.”  A  hole  in  the  top  marks  the  center.  The 
following  true  bearing  was  determined: 

o  t 

North  point  of  the  roof  of  Howard  Payne  College _ 37  16.8  E.  of  S. 

Howell  County,  Westplains. — The  station  is  in  the  southwest  corner  of  the 
college  campus,  which  is  about  %  mile  due  east  of  the  courthouse  and  town. 
It  is  53  feet  from  the  wire  fence  on  the  west  and  51.2  feet  from  the  wire  fence  on 
the  south.  It  is  also  57  feet  from  a  stump  to  the  south.  The  station  is  marked 
by  a  Bedford  limestone  post  30  inches  long  and  about  8  inches  square,  with  top 
below  the  surface  of  the  ground  and  lettered  “  U.  S.  C.  &  G.  S.,  1905.” 

Iron  County,  Fronton. — Declination  observations  were  made  at  both  ends  of  the 
meridian  line  which  was  established  in  a  field  belonging  to  the  Pilot  Knob  Car 
&  Steel  Co.,  about  100  yards  northeast  of  the  depot  of  the  St.  Louis,  Iron  Moun¬ 
tain  &  Southern  Railroad.  Both  stones  of  the  meridian  line  are  reported  to 
have  been  removed. 

Jackson  County,  Independence. — The  station  is  on  the  fairgrounds,  about 
1  mile  south  and  ^  mile  east  of  the  town’s  center.  It  is  within  the  race  course 
near  the  center  and  near  the  south  bank  of  a  small  brook.  It  is  about  100  feet 
south  of  the  pumping  station  (small  pump  house  for  fairgrounds),  and  about  in 
line  with  the  pump  house  and  the  cement  curbstone  of  the  well.  It  is  28  feet 
south  of  the  edge  of  the  bank,  53  feet  south  of  a  large  tree  on  the  north  bank, 
about  400  feet  northeast  of  the  grand  stand,  and  253  feet  east  of  the  fence  around 
the  inner  edge  of  the  race  track.  The  station  is  marked  by  a  Bedford  limestone 
post  6  by  6  by  24  ipches,  set  flush  with  the  ground  and  having  a  brass  plate  in 
the  top.  The  following  true  bearings  were  determined: 

>  o  t 

Right  edge  of  chimney  on  bungalow  wrest  of  fairgrounds  (mark)  _  78  20.  0  W.  of  S. 
Northwest  corner  of  Mr.  Smith’s  house  at  northeast  corner  of 


fairgrounds _ 35  40.  9  E.  of  N. 

East  gable  of  house  on  hill  west  of  fairgrounds _ 81  53.  0  W.  of  N. 

Center  of  pillar  at  the  southeast  corner  of  grand  stand _  34  46.  7  W.  of  S. 


Jackson  County,  Kansas  City. — The  station  is  on  a  low  hill  in  the  northern 
part  of  Swope  Park,  about  5  miles  southeast  from  the  towm’s  center.  It  is  about 
350  feet  north  from  the  Missouri  Pacific  Railroad  tracks,  358.5  feet  east  from 
the  southeast  corner  of  the  stone  wall  above  the  bear  cages,  and  98  feet  south¬ 
west  from  the  center  of  the  trunk  of  an  oak  tree.  The  station  is  marked  by  a 
marble  post  6  by  6  by  33  inches,  projecting  about  6  inches  above  the  ground, 


MAGNETIC  DECLINATION  IN  MISSOURI  33 

and  lettered  “U.  S.  C.  &  G.  S.,”  with  a  small  hole  in  the  center  to  indicate  the 
exact  spot.  The  following  true  bearings  were  determined: 

O  / 

Flagstaff  on  tower  of  golf  club _ 80  37.  5  W.  of  N. 

West  edge  of  chimney  on  lion  house _  75  59.  2  W.  of  N. 

Tip  of  marble  memorial _ 77  15.  9  E!  of  S. 

The  auxiliary  station  was  300  feet  east  of  the  primary  station.  The  station 
of  1900  was  in  block  3  of  Elmwood  Cemetery,  midway  between  the  northeast 
eorner  of  lot  No.  90  and  the  southeast  corner  of  lot  No.  108. 

Jasper  County ,  Carthage. — The  station  is  in  the  southwest  corner  of  Carters 
Park,  about  %  of  a  mile  southeast  of  the  center  of  the  town  and  near  the  corner 
of  East  Chestnut  Avenue  and  South  River  Street.  It  is  101.5  feet  north  of  the 
fence  bounding  the  park  on  the  south,  235  feet  east  of  the  fence  on  the  west, 
and  230.6  feet  northeast  of  the  nearest  point  on  the  monument  to  the  battle  of 
Carthage.  The  station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  24 
inches,  projecting  about  3  inches  above  the  ground  and  lettered  “U.  S.  6.  & 
G.  S.,  1908.”  The  following  true  bearings  were  determined: 


Point  on  north  gable  of  house  with  four  gables  and  painted  °  ' 

roof  (mark) _  69  31.  4  W.  of  S. 

Southeast  corner,  just  under  eaves  of  house  on  northwest 

corner  of  above  street  corner _ 75  38.  4  W.  of  S. 

Southwest  corner  of  power  house,  just  above  foundation _ 14  40.  6  W.  of  N. 

Upper  northeast  corner  of  monument  to  battle  of  Carthage _  66  41.  6  W.  of  S. 


Jefferson  County ,  Hillsboro. — The  station  is  in  the  southwest  corner  of  the 
public-school  grounds,  which  are  about  500  feet  west  of  the  courthouse.  It  is 
about  68  feet  from  the  wire  fence  across  the  road  to  the  west,  32  feet  from  the 
tree  to  the  southeast,  70  feet  from  the  fence  across  the  road  to  the  south,  and 
about  150  feet  from  the  southwest  corner  of  the  school.  The  station  is  marked 
by  a  limestone  post  8  by  8  by  30  inches,  projecting  about  2  inches  above  the 
ground  and  having  a  brass  station  marker  in  the  top.  The  following  true  bear¬ 
ings  were  determined: 


North  gable  of  barn  (mark) _  19  48.  4  W.  of  N. 

Northwest  edge  of  Greenhurst’s  residence _  35  31.  4  E.  of  N. 

Gable  on  Masonic  Hall _  79  15.  9  E.  of  N. 

North  gable  of  Marsdon’s  residence _  22  37.  3  E.  of  S. 

East  gable  of  residence  400  feet  southwest  of  station _  49  58.  2  W.  of  S. 


Johnson  County,  W arrensburg . — The  station  was  in  the  grounds  of  the  Normal 
School,  16.4  feet  east  of  trees,  25.6  feet  north  of  the  south  fence  of  the  campus, 
and  83.5  feet  west  of  the  west  edge  of  north  and  south  walk.  The  station  marker 
is  reported  to  have  been  removed. 

Knox  County,  Edina. — The  station  is  on  the  grounds  of  St.  Joseph  Parochial 
School,  in  the  northern  part  of  the  town.  It  is  about  240  feet  a  little  north  of 
west  from  the  northwest  corner  of  the  school  building  and  246.4  feet  from  its 
southwest  corner.  It  is  113.1  feet  from  a  fence  along  the  south  edge  of  the 
public  road  to  the  north  and  154.1  feet  from  a  fence  to  the  south.  It  is  marked 
by  a  sandstone  post.  The  following  true  bearings  were  determined: 

o  / 


Southwest  corner  of  basement  wall  of  the  school  building _  63  38.2  E.  of  S. 

Foot  of  cross  on  Catholic  Church _  23  03.2  E.  of  S. 


Laclede  County,  Lebanon. — The  station  is  in  the  high-school  playgrounds,  197 
feet  east  from  the  northeast  corner  of  the  building  and  121.5  feet  from  the  east 
edge  of  the  cement  walk  which  runs  north  and  south  in  front  of  the  building 
between  the  building  and  the  playgrounds.  It  is  177  feet  from  the  northeast 
corner  of  the  block  on  which  the  building  stands  at  the  north  end  of  the  cement 
walk.  The  station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  20  inches, 
sunk  level  with  the  ground  and  lettered  “U.  S.  C.  &  G.  S.”  The  following  true 
bearings  were  determined: 


Southeast  corner  of  schoolhouse  (mark) _  79  51.0  W.  of  S. 

Courthouse  flagpole _  36  07.1  E.  of  S. 

Congregational  Church  spire _  69  25.4  E.  of  S. 


34 


IT.  S.  COAST  AND  GEODETIC  SURVEY 


Lafayette  County,  Lexington. — The  station  is  on  the  old  Lexington  battle 
ground  on  the  crest  of  the  hill  and  overlooking  the  river.  It  is  about  600  yards 
north  of  the  standpipe  and  is  northwest  from  the  Central  Female  College.  It  is 
82.1  feet  northeast  from  a  locust  tree,  97.1  feet  northwest  from  a  second  locust 
tree,  82.4  feet  southwest  from  an  elm  tree,  and  86.4  feet  east  of  an  angle  in  the 
west  fence.  It  is  marked  by  a  sandstone  post  6  inches  square  on  top  and  let¬ 
tered  “  U.  S.  C.  &  G.  S.,  1903,”  which  projects  3  inches  above  ground.  The  fol¬ 


lowing  true  bearings  were  determined: 

o  / 

Spire  of  Zion  A.  M.  E.  Church _ 21  17.6  E.  of  S. 

Base  of  flagstaff  on  tower  of  Central  Female  College _ 34  19.2  E.  of  S. 

Standpipe  of  Richmond  waterworks _  45  05.0  W.  of  N. 


Lawrence  County,  Mount  Vernon. — The  station  is  on  the  grounds  of  the  public 
school  in  the  east  part  of  the  town  and  is  northwest  of  the  building.  It  is  119 
feet  and  152.2  feet,  respectively,  from  the  northwest  and  northeast  corners  of  the 
building.  The  station  is  marked  by  a  limestone  slab  3  by  8  by  32  inches,  set  31 
inches  in  the  ground,  lettered  “U.  S.,”  and  having  a  cross  for  a  center  mark. 
The  following  true  bearings  were  determined: 

Point  above  center  of  face  of  clock  on  tower  of  courthouse,  °  ' 

east  side  (mark) _  69  24.  2  W.  of  N. 

Bisection  of  smallest  part  of  ornament  on  corner  of  store 

southeast  corner  of  courthouse  square _  77  15.  9  W.  of  N. 

Lewis  County,  Monticello. — The  station  is  near  the  southeast  corner  of  the  court¬ 
house  square,  near  the  town’s  center.  It  is  131.4  feet  southeast  of  the  southeast 
corner  of  the  courthouse,  45.4  feet  east  of  the  cement  walk  leading  south  from  the 
courthouse.  It  is  marked  by  a  cement  post  14  inches  in  diameter  and  40  inches 
long,  projecting  2  inches  above  ground,  with  bronze  disk  in  the  top.  The  fol¬ 


lowing  true  bearings  were  determined. 

o  / 

Southeast  corner  of  D.  H.  Leslie’s  store  (mark) _  3  24.  8  E.  of  N. 

Northwest  corner  of  Masonic  Hall _  52  51.  4  E.  of  N. 

Southwest  corner  of  George  Woolridge’s  brick  house _  49  05.  6  E.  of  S. 

Southwest  corner  of  courthouse  foundation _  46  37.  6  W.  of  N. 


A  similar  cement  post,  bearing  a  brass  tube,  sets  192.8  feet  to  the  north  and 
marks  the  true  meridian.  This  north  post  is  67.8  feet  northeast  of  the  north¬ 
east  corner  of  the  courthouse  and  22.6  feet  south  of  the  cement  walk  north  of 
the  courthouse  square. 

Lincoln  County,  Troy. — The  station  is  in  the  fairgrounds,  34  mile  south  of  the 
town’s  center.  It  is  178.3  feet  southeast  of  the  stone  steps  of  the  exhibition  hall, 
134.2  feet  south  of  the  southwest  corner  of  the  grand  stand,  47.4  feet  west  of  the 
fence  around  the  track,  and  225.6  feet  east  of  a  row  of  sheds.  It  is  marked  by 
a  cement  post  24  inches  in  diameter  and  30  inches  long,  projecting  3  inches 
above  ground,  and  having  a  bronze  disk  in  the  top.  The  following  true  bear¬ 
ings  were  determined: 

o  / 


Spire  on  courthouse  dome  (mark) _ 58  16.  0  W.  of  N. 

Southwest  corner  of  Mr.  Garrett’s  residence _ 41  15.  3  E.  of  N. 

South  gable  of  Frank  Clair’s  barn _ 86  38.  5  E.  of  N. 

South  gable  (at  top)  of  W.  R.  Young’s  residence _  87  34.  5  W.  of  S. 


A  cement  post  251.8  feet  to  the  south  marks  the  true  meridian. 

Linn  County,  Bucklin. — The  station  is  about  34  mile  south  of  the  center  of 
the  town  in  the  northwest  part  of  the  city  park.  It  is  about  60  feet  south  from 
the  north  edge  of  the  park  and  about  95  feet  east  from  the  west  edge  of  the  park 
and  is  unmarked. 

Linn  County,  Linneus. — The  station  is  about  34  mile  east  of  the  center  of 
the  town  in  the  southeast  corner  of  the  city  park.  It  is  48.2  feet  north  of  the 
fence  on  the  north  side  of  the  baseball  field,  114.5  feet  west  of  the  east  edge  of  the 
park,  and  149.5  feet  northeast  of  the  northeast  corner  of  a  wooden  bridge.  It 
is  marked  by  a  limestone  post  6  by  6  by  26  inches,  with  a  bronze  disk  set  in  the 
top,  which  is  about  2  inches  above  the  ground.  The  following  true  bearings  were 
determined: 


MAGNETIC  DECLINATION  IN  MISSOURI 


35 


O  / 

Lower  southeast  corner  of  First  Baptist  Church  (mark) _ 65  17.  6  E.  of  N. 

Southeast  corner  of  upper  step  of  stone  steps  at  southeast 

door  of  Christian  Church _  13  12.  3  E.  of  N. 

Top  of  fountain  in  the  city  park _  66  36.  3  W.  of  N. 


Livingston  County,  Chillicothe. — The  station  was  on  the  grounds  of  the  State 
Industrial  Hqme  for  Girls.  It  was  south  from  the  fence  along  Third  Street  91.5 
feet,  73  feet  northwest  from  an  oak  tree,  92.2  feet  northeast  of  an  elm  tree,  and 
about  200  feet  from  the  main  building  of  the  home.  The  station  marker  is 
reported  to  have  been  removed. 

Macon  County,  Macon. — The  station  is  in  Oakwood  Cemetery,  in  the  northeast 
quarter  of  the  ornamental  circle  near  the  gate,  4.5  feet  east  of  the  path  running 
north  and  south  through  the  circle  and  39.5  feet  from  the  north  edge  of  the 
circle.  It  is  marked  by  a  white  limestone  post  6  inches  square  on  top,  lettered 
“U.  S.  C.  &  G.  S.,”  and  sunk  even  with  the  surface  of  the  ground.  The  follow¬ 
ing  true  bearings  were  determined: 

o  / 


Southwest  corner  of  frame  house  of  Edward  Thompson _  45  09.  0  E.  of  N. 

Southwest  corner  of  chimney  of  frame  house  of  Doctor  Miller _  72  20.  5  E.  of  N. 

Tip  of  iron  gatepost  on  north  side  of  cemetery  entrance _  80  57.  0  E.  of  S. 

Tip  of  iron  gatepost  on  south  side  of  cemetery  entrance _  70  40.  5  E.  of  S. 


Madison  County,  Fredericktown. — The  station  is  in  the  northwestern  corner  of 
the  grounds  of  the  Marvin  Methodist  College,  about  ^  of  a  mile  southeast  of 
the  town’s  center.  It  is  66.5  feet  south  from  the  fence  bordering  the  grounds  on 
the  north  and  72.9  feet  east  from  the  fence  bordering  the  grounds  on  the  west. 
It  is  marked  by  a  limestone  post  6  by  6  by  30  inches,  projecting  about  2  inches 
above  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1910.”  The  following  true  bear¬ 
ings  were  determined: 

O  / 


Spire  on  courthouse  cupola  (mark) 
Flagpole  on  cupola  of  high  school. 

Spire  on  Christian  Church _ 

Cross  on  Catholic  Church  steeple. 
Cupola  of  main  college  building _ 


41  31.2  W.  of  N. 

53  17.2  W.  of  N. 
51  03.7  W.  of  N. 

54  26.9  W.  of  N. 
44  17.8  E.  of  S. 


Maries  County,  Vienna. — The  station  is  in  the  southeastern  corner  of  the  lot 
south  of  the  schoolhouse,  about  mile  south  from  the  town’s  center.  It  is  53 
feet  north  from  the  south  boundary  fence,  48  feet  a  little  north  of  east  from 
the  center  of  a  lone  oak  tree,  and  136.3  feet  southwest  from  the  southeast  corner 
of  the  school  building.  It  is  marked  by  a  limestone  post  5  bv  7  by  27  inches, 
with  a  bronze  disk  set  in  the  top,  projecting  about  6  inches  above  the  ground. 
.The  following  true  bearings  were  determined: 

O  / 


South  gable  of  B.  H.  Otto’s  house  (mark) _ 31  03.1  W.  of  N. 

Base  of  cross  on  Catholic  Church  steeple _  37  54.6  W.  of  S. 

Upper  northwest  corner  of  Home  Advertiser  building,  under 

eaves _  17  17.1  W.  of  S. 


Marion  County,  Palmyra. — The  station  is  in  the  new  city  cemetery  in  the 
driveway  called  Eighth  Avenue,  near  the  west  fence  line.  It  is  24.4  feet  from  the 
northeast  corner  of  the  Smith  lot  and  26.5  feet  from  the  southeast  corner  of  the 
Thurwachter  lot.  It  is  marked  by  a  white  limestone  post  6  inches  square  on 
top,  lettered  “U.  S.  C.  &  G.  S.,”  and  sunk  1  inch  below  the  surface  of  the  ground. 
A  hole  in  the  top  marks  the  center.  The  following  true  bearings  were  determined: 


O 


t 


Catholic  Church  spire  (mark) _  9  06.5  E.  of  S. 

Southeast  corner  of  house  of  H.  M.  Howard _ . _  11  20.6  W.  of  S. 

Southwest  corner  of  white  stone  house  of  Mr.  McAfee _  55  22.8  S.  of  E. 


McDonald  County,  Pineville. — The  station  is  on  ground  belonging  to  the  county 
road,  about  250  feet  southeast  of  the  public  school,  and  about  }/i  mile  north 
of  the  center  of  the  town.  It  is  in  a  triangle  formed  by  a  road  on  the  northwest, 
a  fence  on  the  south,  and  a  fence  on  the  east.  It  is  49.2  feet  west  of  the  fence  to 
the  east,  60.5  feet  north  of  the  fence  to  the  south,  and  52.6  feet  south  of  the 
fence  to  the  north  across  the  road.  The  station  is  marked  by  a  Bedford  limestone 
post  6  bv  6  bv  30  inches,  projecting  about  9  inches  above  the  ground  and  lettered 
“U.  S.  C.  &  G.  S.,  1908.” 


36 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Mercer  County,  Princeton. — The  station  is  about  %  mile  west  of  the  center 
of  the  town  in  the  southwest  part  of  the  old  fairgrounds,  which  is  now  used  as  a 
Chautauqua  meeting  ground.  It  is  212.6  feet  south  of  the  north  fence  and  about 
36  feet  north  from  the  northwest  edge  of  the  lake.  It  is  marked  by  a  limestone 
post  6  by  6  by  28  inches,  with  a  hole  in  the  center  of  the  top,  lettered  “U.  S. 
C.  &  G.  S.,  1917,”  and  projecting  4  inches  above  the  ground.  The  following 
true  bearings  were  determined: 

o  / 


West  gable  of  a  red  barn  (mark) _  67  34.3  E.  of  N. 

West  gable  at  the  tip  of  the  Atley  Grain  Co.’s  elevator _  89  25.8  E.  of  S. 

Top  of  schoolhouse  cupola _  85  40.4  E.  of  S.. 

Lower  southeast  corner  of  Edward  Kauffman’s  sheep  barn _ 41  02.6  E.  of  N. 


Miller  County,  Tuscumbia. — The  station  is  in  the  north  corner  of  the  city  park, 
about  mile  south  from  the  town’s  center.  It  is  75.6  feet  from  the  near  edge 
of  the  sidewalk  on  the  northwest  side  of  the  park  and  90  feet  northwest  from 
the  southwest  corner  of  an  old  cabin  in  the  park.  It  is  marked  by  a  limestone 
post  5  by  5  by  27  inches,  with  a  bronze  disk  set  in  the  top,  which  projects  about 
5  inches  above  the  ground.  The  following  true  bearings  were  determined: 

O  f 


Top  of  Presbyterian  Church  steeple _  34  46.7  E.  of  Nh 

Top  of  courthouse  dome _ _  22  06.8  E.  of  N. 

Upper  south  corner  of  Tuscumbia  Bank  under  top  stones  of 
roof _ _  18  44.5  E.  of  N. 


Mississippi  County,  Charleston.— The  station  is  in  the  southeast  corner  of  tho 
public-school  grounds,  about  y  mile  east  of  the  center  of  the  town.  It  is  15 
feet  from  the  north  edge  of  the  cement  sidewalk  on  the  south  and  55  feet  from 
the  middle  of  the  road  on  the  east.  The  station  is  marked  by  a  concrete  post 
7  by  7  by  27  inches,  projecting  2  inches  above  the  ground  and  having  a  brass 
magnetic  station  marker  in  the  top.  The  following  true  bearings  were  determined : 


North  gable  of  residence  400  feet  distant  (mark) _  3  26.3  E.  of  S. 

Southwest  edge  of  school  building _  52  42.7  W.  of  N. 

Northeast  edge  of  school  building _  22  46.5  W.  of  N„ 

South  gable  of  residence _  0  32.8  E.  of  N. 

North  gable  of  barn _  67  17.5  E.  of  N. 


A  similar  stone  with  a  3^8-inch  hole  in  the  top  was  set  350  feet  due  north 
of  the  magnetic  station. 

Moniteau  County,  California. — The  station  is  in  the  southwestern  part  of  the 
infield  within  the  race  track  at  the  county  fairgrounds,  about  %  mile  southeast 
from  the  town’s  center.  It  is  35  feet  from  the  west  fence  on  the  inside  of  the 
race  track,  121.5  feet  from  the  south  fence,  85  feet  southwest  from  the  southwest 
corner  of  a  fence  surrounding  a  pump,  209.5  feet  southwest  from  the  southwest 
corner  of  the  new  concrete  committee  house  in  the  infield.  It  is  marked  by  a 
limestone  post  5  by  7  by  26  inches,  with  a  bronze  disk  set  in  the  top,  which  pro¬ 
jects  about  2  inches  above  the  ground.  The  following  true  bearings  were 
determined : 

O  / 


Top  of  German  Evangelical  Church  (mark) _ 85  03.9  W.  of  S. 

Top  of  town  water  tank _  58  52.7  W.  of  S. 

Top  of  gate  house  at  the  fair  grounds _  76  56.0  W.  of  N. 

South  gable  of  the  poultry  exhibition  house _  15  34.4  W.  ofN. 


Monroe  County,  Paris. — The  station  is  near  the  center  of  the  fairgrounds, 
y  mile  east  of  the  town’s  center.  It  is  in  line  with  two  large  trees  48.6  feet  and 
92.4  feet  north  of  the  north  and  south  tree,  respectively,  146  paces  south  of  the 
fence  in  front  of  the  grand  stand,  268  feet  west  of  a  long  barn,  156  feet  east  of  the 
old  race  track,  and  about  80  feet  south  of  the  smaller  circular  track.  It  is  marked 
by  a  cement  post  14  inches  in  diameter  by  30  inches  long,  with  bronze  disk  in  top, 
which  sets  flush  with  the  ground.  The  following  true  bearings  were  determined: 


Flagpole  at  apex  of  courthouse  tower  (mark) _  60  48.3  W.  of  N. 

South  gable  of  barn  y  mile  east  of  fairgrounds _  62  21.3  E.  of  N. 

Flagpole  on  high-school  cupola _  80  42.0  W.  of  S. 

Flagpole  at  apex  of  engine-house  tow^er _ 79  16.9  W.  of  N. 

Northeast  corner  of  courthouse _  58  59.7  W.  of  N. 


MAGNETIC  DECLINATION  IN  MISSOURI 


37 


Montgomery  County,  Montgomery  City. — The  station  is  in  the  southwest  corner 
of  the  piece  of  railroad  land  on  the  west  side  of  the  Wabash  Railroad  station, 
about  34  mile  south  from  the  town’s  center.  It  is  273.2  feet  southwest  from  the 
south  corner  of  the  Wabash  Railroad  station,  79.1  feet  northwest  from  the  fence 
on  the  southeast  side  of  the  grounds,  and  97.2  feet  a  little  east  of  north  from  the 
northwest  corner  of  the  fence  surrounding  the  lot  on  the  southeast  side  of  the 
grounds.  It  is  marked  by  the  neck  of  a  quart  glass  jug,  buried  about  3  inches 
below  the  ground.  The  following  true  bearings  were  determined: 


o  t 

Lower  southeast  corner  of  Hanover  Hotel  (mark) _  23  53.3  E.  of  N. 

Top  of  steeple  of  a  small  white  church _  31  05.6  E.  of  S. 

Upper  northwest  corner  under  rod  of  building  on  the  corner 

southeast  across  the  road  from  the  Hanover  Hotel _  28  04.6  E.  of  N. 

Lower  southeast  corner  of  Wabash  Railroad  station _ 46  16.4  E.  of  N. 


Morgan  County,  Versailles. — The  station  is  in  the  southern  part  of  a  triangular 
plot  of  land  belonging  to  the  Rock  Island  Railroad,  which  lies  northeast  of  the 
baseball  grounds  and  between  the  Missouri  Pacific  and  the  Rock  Island  Railroad 
tracks  and  is  about  34  mile  northwest  from  the  town’s  center.  It  is  70  feet 
southeast  from  the  fence  on  the  southeast  side  of  the  main  tracks  of  the  Rock 
Island  Railroad,  111.3  feet  northeast  from  the  northeast  fence  of  the  baseball 
grounds,  and  119  feet  southwest  from  the  nearest  rail  of  a  sidetrack.  It  is  marked 
by  a  limestone  post  5  by  7  by  30  inches,  with  a  bronze  disk  set  in  the  top,  project¬ 
ing  about  4  inches  above  the  ground.  The  following  true  bearings  were  deter¬ 
mined  : 

Lower  southwest  corner  of  Hunter  &  Hargett’s  feed  and  °  ' 


grain  office -(mark) _  6  50.8  E.  of  S. 

Top  of  courthouse  cupola _ 31  31.7  E.  of  S. 

Top  of  Christian  Church  steeple _  88  58.3  E.  of  S. 

Top  of  cupola  in  the  center  of  the  Christian  Church  roof _  89  01.6  E.  of  N. 


Morgan  County ,  Versailles  North  Base.— The  station  is  about  5  miles  north- 
northeast  of  Versailles,  in  the  southern  part  of  the  W.  34  of  the  SW.  34  of  sec.  9, 
T.  43  N.,  R.  17  W.,  on  land  owned  by  the  heirs  of  Moses  H.  Tipton.  It  is  99.2 
feet  east  of  the  southeast  corner  of  the  Tipton  house,  27  feet  north  of  the  center 
of  the  east  and  west  public  road,  and  5  feet  south  of  the  fence  line.  The  station 
is  marked  by  a  block  of  stone  2534  inches  thick,  in  the  top  of  which  is  set  a  bronze 
triangulation  station  mark.  The  name  of  the  station  and  the  date  it  was  estab¬ 
lished  are  stamped  on  the  tablet. 

New  Madrid  County,  New  Madrid. — The  station  is  in  the  southeast  corner  of 
the  public-school  grounds,  about  34  mile  north  of  the  center  of  the  town.  It  is 
25.3  feet  from  the  north  edge  of  the  sidewalk  to  the  south,  27.9  feet  from  the 
tree  to  the  southeast,  and  34  feet  from  the  fence  to  the  east.  The  station  is 
marked  by  a  concrete  block  24  inches  long  and  8  inches  square  at  the  top.  The 
top  is  just  below  the  surface  of  the  ground  and  is  lettered  “U.  S.  C.  &  G.  S., 
1912.”  The  following  true  bearings  were  determined: 


North  gable  of  residence  (mark) _ _ _  6  26.7  E.  of  S. 

South  gable  of  residence  500  feet  distant _  50  45.6  W.  of  S. 

Southwest  edge  of  school _  75  39.0  W.  of  N. 

Northeast  edge  of  school _  58  42.1  W.  of  N. 

South  gable  of  residence _ __ _  0  31.8  W.  of  N. 


Newton  County,  Neosho. — The  station  is  in  the  northern  part  of  the  grounds  of 
the  United  States  Fisheries  station,  about  %  mile  northeast  of  the  center  of 
the  town.  It  is  76  feet  south  of  the  fence  bounding  the  grounds  on  the  north, 
42  feet  north  from  the  north  edge  of  the  second  fishpond  along  the  north  fence 
counting  from  the  west,  and  131.5  feet  southeast  of  the  eastern  post  of  the  gate 
near  the  center  of  the  north  fence.  The  station  is  marked  by  a  Bedford  lime¬ 
stone  post  6  by  6  by  30  inches,  projecting  about  1034  inches  above  the  ground 
and  lettered  “  U.  S.  C.  &  G.  S.,  1908.”  The  following  true  bearings  were 


determined : 

O  / 

Flagstaff  on  cupola  of  Benton  School  (mark) _ _  58  03.8  W.  of  S. 

Flagstaff  on  tallest  cupola  of  fishery  building _  30  22.2  W.  of  S. 

Base  of  flagstaff  on  red  cupola  on  Ed.  Haas’s  grocery  store _ 41  48.3  W.  of  N. 


38 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Nodaway  County,  Maryville. — The  station  is  on  the  campus  of  the  State  Normal 
School,  }/2  mile  west  of  the  center  of  the  town.  It  is  263.1  feet  south  of  the  east 
corner  of  the  main  building,  251  feet  east  of  the  south  corner,  and  7.4  feet  south¬ 
west  of  the  edge  of  the  main  walk  leading  to  the  normal  school,  and  2.2  feet 
south  of  the  north  edge  of  the  cross  walk  at  this  point.  It  is  just  north  of  a 
group  of  birch  trees  and  is  marked  by  a  marble  post  6  by  6  by  24  inches,  lettered 
“U.  S.  C.  &  G.  S.,  1915.”  The  post  is  set  3  inches  below  the  level  of  the  con¬ 
crete  walk  and  is  covered  by  a  removable  12  by  12  inch  cast-iron  cover  plate. 


The  following  true  bearings  were  determined: 

O  / 

Apex  of  elevated  steel  tank  (mark) _  79  34.1  E.  of  N. 

Left  edge  of  normal  school _  64  46.2  W.  of  N. 

Right  edge  of  normal  school  at  third  floor _  6  27.9  E.  of  N. 

Left  side  of  smokestack  at  bottom  of  brick  heating  plant _  43  59.4  E.  of  N. 


Local  engineers  have  established  a  true  meridian  mark  on  the  limestone 
foundation  of  the  main  building  243.4  feet  north  of  the  magnetic  station.  It  is 
a  %  by  234  inch  copper  plate  with  a  vertical  groove  in  it  mounted  35.1  feet 
southwest  of  the  east  corner  of  the  foundation,  4.3  feet  above  the  ground,  and 
0.1  feet  below  the  window  sill  at  this  point. 

Oregon  County,  Alton. — The  station  is  about  34  mile  west  of  the  center  of  the 
town  in  the  northwest  corner  of  the  orchard  of  Mr.  Wade  Heiskell  and  southeast 
of  his  house.  It  is  68.4  feet  southeast  from  the  southeast  corner  of  the  east 
inclosed  lot  on  the  south  side  of  Heiskell’s  yard,  60.4  feet  east  of  the  west  orchard 
fence,  13.2  feet  northeast  from  the  center  of  the  trunk  of  a  small  cedar  tree,  and 
about  240  feet  south  of  the  north  pasture  fence.  It  is  marked  by  a  cement 
block  about  24  inches  long,  with  a  bronze  disk  in  the  top  flush  with  the  ground. 
The  following  true  bearings  were  determined: 


Top  of  schoolhouse  cupola  (mark) _ 71  25.0  E.  of  S. 

Upper  northeast  corner  of  schoolhouse  cupola,  under  eaves _ 71  35.4  E.  of  S. 

Top  of  Baptist  Church  steeple _  73  48.1  E.  of  S. 

South  gable  of  Carvin  Gohit’s  house _  7  30.3  E.  of  N. 


A  rough  field  stone  about  24  inches  long  and  3  inches  in  diameter  at  the  top,  225 
feet  distant,  and  projecting  3  inches  above  the  ground,  was  set  to  mark  the  south 
end  of  a  meridian  line.  This  stone  is  cemented  in  the  ground.  Owing  to  an 
error  in  computation  the  true  bearing  of  the  stone  is  0°  00.8'  W.  of  S. 

Oregon  County,  Thayer. — The  station  is  about  34  mile  east  of  the  center  of 
the  town  in  the  southwest  corner  of  the  fairgrounds.  It  is  about  80  feet  from  the 
west  fence  and  120  feet  from  the  south  fence.  The  station  is  not  marked. 

Osage  County,  Linn.— The  station  is  in  the  southeastern  corner  of  the  -infield 
within  the  race  track  at  the  county  fairgrounds,  about  1  mile  southeast  from  the 
town’s  center.  It  is  91.7  feet  northeast  from  the  northeast  corner  of  the  judge’s 
stand,  57.9  feet  north  from  the  inside  fence  of  the  race  track,  and  68.9  feet  west 
from  the  fence.  It  is  marked  by  a  limestone  post  5  by  7  by  27  inches,  with  a 
bronze  disk  set  in  the  top,  projecting  about  2  inches  above  the  ground.  The 
following  true  bearings  were  determined: 


Cross  on  Catholic  Church  steeple  (mark) _  40  22.7  W.  of  N. 

Top  of  Methodist  Episcopal  Church  steeple _  43  49.7  W.  of  N. 

South  gable  of  largest  barn  in  west  end  of  fairgrounds _  77  27.4  W.  of  N. 

East  gable  of  grand  stand _ 67  17.0  W.  of  S. 


Ozark  County,  Gainesville. — The  station  is  in  the  southwest  part  of  the  new 
schoolhouse  grounds,  about  1,000  feet  southwest  from  the  town’s  center.  It  is 
47  feet  north  from  the  south  fence,  142  feet  southwest  from  the  southwest  corner 
of  the  schoolhouse,  and  about  207  feet  west  from  the  east  fence.  It  is  marked 
by  a  cement  block  6  inches  in  diameter  and  26  inches  long,  with  a  bronze  disk 
set  in  the  top,  which  is  1  inch  above  the  ground.  The  following  true  bearings 
were  determined: 

o  / 

Top  of  Methodist  Church  cupola  (mark) _  86  36.5  E.  of  N. 

Southeast  gable  of  Everett  Luny’s  house _  2  45.2  E.  of  N. 

Upper  northwest  corner  of  Woods  &  Reed  Mercantile  Co., 

under  eaves _ 75  54.5  E.  of  N. 

Lower  northwest  corner  of  schoolhouse _  14  50.3  E.  of  N, 


MAGNETIC  DECLINATION  IN  MISSOURI 


39 


Pemiscot  County ,  Caruthersville. — -The  station  is  in  the  eastern  part  of  the  oval 
within  the  race  track  at  the  county  fairgrounds,  on  the  western  edge  of  the  base¬ 
ball  field,  about  1  mile  southwest  of  the  town’s  center.  It  is  317  feet  southeast 
from  the  southeast  corner  of  the  judges’  stand  at  the  race  track  and  247.4  feet 
south  of  the  northern  part  of  the  fence  inside  of  the  race  track.  It  is  marked 
by  a  limestone  post  6  by  6  by  33  inches,  projecting  about  6  inches  above  the 
ground  and  lettered  “U.  S.  C.  &  G.  S.,  1909.”  The  following  true  bearings  were 


determined: 

O  / 

Rod  on  steeple  of  Sanctified  Church  (mark) _ _ _ 81  18.5  E.  of  S. 

Top  of  west  cupola  on  public-school  building _  67  04.2  E.  of  N. 


Perry  County ,  Perryville. — The  station  was  in  the  southwest  corner  of  the  base¬ 
ball  field  on  the  grounds  of  St.  Mary’s  Seminary,  about  134  miles  a  little  south 
of  west  of  the  center  of  town.  It  was  about  600  feet  south  of  the  seminary 
buildings  and  about  100  feet  northeast  of  a  statue  on  a  grass  mound.  It  was 
81.3  feet  north  of  the  fence  bounding  the  base  ball  field  on  the  south,  44.8  feet 
east  of  a  hedge  on  the  east  side  of  the  above  statue,  and  54.3  feet  southeast 
from  the  nearest  edge  of  an  old  spring  lined  with  stone.  The  station  marker  is 
reported  to  have  been  removed. 

Perry  County ,  Wittenberg. — The  magnetic  station  was  identical  with  the  astro¬ 
nomical  station. 

Pettis  County,  Sedalia. — The  station  is  located  on  the  campus  of  the  George  R. 
Smith  College,  223.5  feet  south  and  37.2  feet  east  of  the  southeast  corner  of  the 
building.  It  is  marked  by  a  gray  limestone  post  8  by  8  by  34  inches,  lettered 
“U.  S.  C.  &  G.  S.,”  and  set  flush  with  the  ground. 

Phelps  County,  Rolla. — The  station  was  located  on  the  campus  of  the  Missouri 
State  School  of  Mines,  211.5  feet  due  north  of  the  northwest  corner  of  Norwood 
Hall  and  125  feet  east  of  the  east  edge  of  the  cement  walk  which  runs  north  and 
south  west  of  Norwood  Hall.  It  was  21.5  feet  southwest  of  a  cement  marking 
stone  established  by  “1909”  civil  engineering  students.  The  site  of  the  station 
is  now  occupied  by  a  building.  • 

Pike  County,  Bowling  Green. — The  station  is  in  the  eastern  part  of  the  town,  on 
a  hill  and  in  line  with  Centennial  Avenue.  It  is  on  the  property  of  G.  W.  Wallar, 
111.6  feet  from  the  west  fence  and  252.9  feet  from  the  south  fence.  It  is  49.3  feet 
southwest  of  a  bull  hickory  tree  and  81.3  feet  west  of  a  second  bull  hickory  tree. 
The  station  is  marked  by  a  limestone  post  7  inches  square  on  top  and  lettered 
“U.  S.  C.  &  G.  S.,  1903.”  The  following  true  bearings  were  determined: . 


Spire  of  the  Presbyterian  Church _  87  46.  4  W.  of  N. 

Tip  of  the  courthouse  cupola _  73  01.  8  W*  of  S. 

Base  of  flagstaff  on  school  building _  74  31.  8  W.  of  N. 


Platte  County,  Platte  City. — The  station  is  in  the  northern  part  of  R.  P.  C. 
Wilson’s  large  yard,  about  34  mile  southeast  of  the  town’s  center.  It  is  60  feet 
south  of  the  north  fence,  228  feet  from  the  fence  along  the  road  leading  to  town, 
100  feet  east  of  a  tree,  and  about  300  feet  north  of  the  Wilson  house.  It  is  on 
the  high  part  of  the  hill,  ground  sloping  toward  east  and  west.  The  station  is 
marked  by  a  Bedford  limestone  post  6  by  6  by  24  inches,  projecting  6  inches 
above  the  ground  and  having  a  brass  plate  in  the  top.  The  following  true 
bearings  were  determined: 

Weather  vane  on  cupola  of  Mr.  Mason’s  house  northwest  of  ° 


town  (mark) _ _ _ _ _ _ 61  01.  0  W.  of  N. 

Right  edge  of  large  square  monument  in  cemetery _  36  41.  1  W.  of  N. 

Spire  on  round  cupola  of  Mr.  Chestnut’s  house _ • _  56  23.  9  W.  of  S. 

North  gable  of  a  barn _  80  08.  7  E.  of  S. 


Polk  County,  Bolivar. — The  station  is  located  on  the  land  of  J.  T.  Odor,  about 
^  of  a  mile  east  of  town.  It  is  130.1  feet  from  the  east  line  of  the  Odor  property 
and  about  300  feet  southwest  from  the  house  of  B.  M.  Johnson.  The  station 
is  marked  by  a  sandstone  post  7  inches  square  on  top  and  lettered  “U.  S.  C.  & 
G.  S.,  1903,”  and  has  a  drill  hole  in  the  center.  The  following  true  bearings 
were  determined:  • 


Southwest  side  of  the  town  standpipe _ 55  13.  6  W.  of  N. 

South  post  on  the  cupola  of  the  Southwest  Baptist  College 84  20.  2  W.  of  N. 


i 


40 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Pulaski  County,  WaynesviUe. — The  station  is  in  a  cultivated  field  which  is  on 
the  south  side  of  the  stream  running  through  the  town  and  on  the  west  side  of 
the  main  road  entering  the  town  from  the  north.  It  is  about  48  feet  from  the 
center  of  a  rough  wagon  road  running  through  the  south  side  of  the  grounds, 
88  feet  from  the  wire  fence  on  the  south,  and  127  feet  from  the  center  of  the 
main  road  on  the  east.  The  station  is  marked  by  a  concrete  block  10  by  10  by 
20  inches,  sunk  5  inches  below  the  surface  of  the  ground  and  having  a  brass 
magnetic  station  marker  in  the  top.  The  following  true  bearings  were  determined : 


O  / 

Church  spire,  300  yards  distant  (mark) _  19  29.  3  E.  of  S. 

North  gable  of  residence  500  feet  southwest  of  Baker  Hotel 10  27.  3  E.  of  S. 


The  station  of  1905  was  on  the  point  of  a  bluff  southwest  of  the  courthouse, 
on  a  small  tract  of  land  owned  by  Prof.  W.  A  Lumpkin. 

Putnam  County,  Unionville. — The  station  is  about  13^2  miles  west  of  the  center 
of  the  town  in  the  west  part  of  the  inclosure  surrounding  the  city  reservoir,  a 
pond.  It  is  116.5  feet  east  of  the  west  fence,  77.7  feet  west  of  the  west  edge  of 
the  pond,  and  about  345  feet  south  from  the  north  edge  of  the  pond.  It  is  marked 
by  a  limestone  post  6  by  6  by  28  inches,  lettered  “U.  S.  C.  &  G.  S.,  1917,”  on  the 
top,  with  a  hole  in  the  center,  which  is  about  4  inches  above  the  ground. 
The  following  true  bearings  were  determined: 


Top  of  cupola  of  J.  J.  Vrooman’s  barn  (mark) _  87  42.  8  E.  of  S. 

West  gable  of  a  farmhouse _  79  08.  5  E.  of  N. 

West  gable  of  David  Mowrer’s  house _  79  35.  9  E.  of  S. 


A  limestone  post  about  350  feet  distant,  with  a  hole  in  its  top,  set  about  3 
inches  above  the  ground,  marks  the  north  end  of  a  meridian  line.  It  is  at  the 
edge  of  the  cement  levee  on  the  north  edge  of  the  pond. 

Ralls  County,  New  London. — The  station  is  in  the  county  fairgrounds,  %  mile 
south  of  the  town’s  center.  It  is  between  the  railroad  and  the  race  track  south¬ 
west  of  the  grand  stand.  The  southeast  side  of  the  grand  stand  (produced)  passes 
5.8  feet  south  of  the  station.  It  is  65  feet  southeast  of  the  fence  around  the  race 
track,  166.1  feet  southwest  of  the  grand  stand,  and  197.3  feet  northwest  of  the 
fence  along  the  St.  Louis  &  Hannibal  Railroad  measured  to  a  point  near  the  west 
end  of  a  large  pond.  The  station  is  marked  by  a  cement  post  16  inches  in  diameter 
and  30  inches  long,  projecting  3  inches  above  the  ground,  and  having  a  bronze 
disk  set  in  the  top.  The  following  true  bearings  were  determined: 


o  r 

Spire  on  cupola  of  barn  east  of  fairgrouuds  (mark) _  43  53.1  E.  of  N. 

South  gable  of  house  near  above  barn _  46  47.7  E.  of  N. 

Spire  on  cupola  of  barn  to  southeast _  57  56.2  E.  of  S. 

East  gable  of  a  farmhouse  %  mile  distant _  49  53.5  W.  of  S. 


Randolph  County,  Huntsville. — The  station  is  in  the  northeastern  part  of  the 
Radium  Spring  Park,  about  }/%  mile  southwest  from  the  town’s  center.  It  is 
about  102  feet  southwest  from  the  northeast  park  fence,  about  162  feet  north¬ 
east  from  the  southeast  corner  of  the  house  in  the  park,  and  about  132  feet 
northwest  from  the  nearest  point  of  the  park  pavilion.  It  is  marked  by  a  lime¬ 
stone  post  6  by  6  by  30  inches,  with  a  bronze  disk  set  in  the  top,  projecting  6 
inches  above  the  ground.  The  following  true  bearings  were  determined: 


O  •  / 

Top  of  town  water  tank _ _  85  29.6  E.  of  N. 

South  gable  of  a  white  frame  house _  2  56.6  E.  of  S. 


Ray  County,  Lawson r — The  station  is  about  1,000  feet  southeast  from  the 
center  of  the  town  in  the  southern  part  of  the  baseball  field  at  the  southeast  side 
of  the  Santa  Fe  Railroad  station.  It  is  about  300  feet  southeast  of  the  station, 
55  feet  north  of  the  south  fence  of  the  field,  and  250  feet  east  of  the  west  fence  of 
the  field.  It  is  not  marked. 

Ray  County,  Richmond. — The  station  is  on  the  county  farm,  about  3^2  mile 
southwest  of  the  town’s  center.  It  is  in  the  large  open  pasture  in  front  of  the 
county  farm  building  and  about  50  yards  from  the  building.  It  is  30  feet  south 
of  a  hickory  tree,  32  feet  north  of  an  elm  tree  and  is  about  in  line  with  these  trees, 
86  feet  northwest  of  the  fence  around  the  buildings,  and  17  feet  north  of  the  line 
of  the  south  fence  produced  westward.  The  station  is  marked  by  a  Bedford 


MAGNETIC  DECLINATION  IN  MISSOURI 


41 


limestone  post  6  by  6  by  24  inches,  with  a  brass  plate  in  the  top  and  set  flush 
with  the  ground.  The  following  true  bearings  were  determined: 


O  / 

Right  edge  of  standpipe  (mark) _  84  38.2  E.  of  N. 

Extreme  left  edge  of  county  farm  building,  above  cement _  60  50.1  E.  of  S. 

Extreme  right  edge  of  county  farm  building,  above  cement. _  30  01.1  E.  of  S. 

Left  edge  of  large  dark  tombstone  in  cemetery  on  hill _  22  29.7  E.  of  N. 

South  gable  of  a  house  in  village _  42  54.9  E.  of  N. 


Reynolds  County ,  Centerville. — The ‘station  is  near  the  top  of  a  steep  hill  in  the 
southeastern  part  of  town.  It  is  at  the  eastern  end  of  a  lane  running  up  the  hill 
and  on  the  north  side  of  the  property  of  T.  J.  Jordan,  the  county  collector.  It 
is  in  the  northern  end  of  a  strip  of  land  belonging  to  the  village  and  running  along 
the  eastern  edge  of  Mr.  Jordan’s  property.  It  is  52.6  feet  south  of  the  fence  on 
the  southern  boundary  of  the  field  on  the  northern  side  of  this  strip,  26.6  feet 
east  of  the  southeast  corner  of  the  fence  around  the  field  at  the  northwest  corner 
of  this  strip,  and  40.9  feet  east  of  the  fence  on  the  eastern  boundary  of  Mr. 
Jordan’s  property.  The  station  is  marked  by  a  cement  block  4  by  8  by  14  inches, 
projecting  1  inch  above  the  surface  of  the  ground  and  lettered  “  U.  S.,  1908.” 
The  following  true  bearings  were  determined: 


O  / 

Steeple  of  Baptist  Church  (mark) _  39  04.2  W.  of  N. 

Cupola  on  Methodist  Church _  38  50.2  W.  of  N. 

Point  at  top  of  east  gable  of  courthouse _  35  58.6  W.  of  N. 


Ripley  County,  Doniphan.— The  station  is  in  the  north  end  of  the  town  baseball 
park,  which  is  about  ) 4  mile  southwest  of  the  courthouse.  It  is  62  feet  from  the 
fence  on  the  north  and  58  feet  from  that  on  the  east  and  is  marked  by  a  limestone 
post  7  by  7  by  27  inches,  lettered  “ U.  S.  C.  &  G.  S.,  1912,”  and  set  flush  with 
the  ground.  The  following  true  bearing  was  determined: 

O  f 

Flagpole  on  courthouse _ _ _  57  02.4  E.  of  N. 

St.  Clair  County,  Osceola. — The  station  is  on  a  high  hill  southeast  of  the  town 
on  the  land  of  the  Johnston  Land  Co.  It  is  217  feet  west  from  the  south  corner 
of  Frank  Daniel’s  land.  It  is  marked  by  a  rough-dressed  stone  7  inches  square 
at  the  top,  which  is  lettered  “U.  S.  C.  &  G.  S.,  1903.”  and  projects  4  inches 
above  ground.  The  following  true  bearing  was  determined: 

O  / 

Base  of  pole  on  town  water  tank _  88  09.6  W.  of  S. 

Ste.  Genevieve  County,  Ste.  Genevieve. — The  station  is  in  the  southern  corner  of 
"the  pasture  at  the  county  farm,  about  700  feet  southwest  of  the  county  farmhouse 
and  about  1)4  miles  west  of  the  town’s  center.  It  is  84  feet  northeast  of  the 
fence  bordering  the  pasture  on  the  southwest  and  61  feet  northwest  of  the  fence 
bordering  the  pasture  on  the  southeast.  It  is  marked  by  a  limestone  post  6  by  6 
by  30  inches,  projecting  about  5  inches  above  ground  and  lettered  “U.  S.  C.  & 


G.  S.,  1910.”  The  following  true  bearings  were  determined: 

o  / 

East  gable  of  tallest  barn  at  county  farm _  43  05.5  E.  of  N. 

West  gable  on  section  house  on  short  railroad  bridge  across 

river _  52  25.3  E.  of  N. 


St.  Francois  County,  Farmington.—' The  station  is  north  of  the  western  part  of 
the  grounds  of  the  Carleton  Methodist  College,  about  )4  mile  southeast  of  the 
town’s  center.  It  is  76  paces  south  of  the  southeast  corner  of  the  brick  residence 
of  the  professor  of  science,  109  paces  northwest  of  the  northwest  corner  of  the 
main  college  building,  and  51  paces  east  of  a  fence  across  the  road  to  the  west. 
It  is  marked  by  a  limestone  post  6  by  6  by  30  inches,  projecting  about  3  inches 
above  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1910.”  The  following  true  bear¬ 
ings  were  determined: 

O  / 


Base  of  cross  on  Catholic  Church  (mark) _  12  19.3  W.  of  N. 

Spire  of  Lutheran  Church _  2  11.6  E.  of  N. 


Base  of  rod  at  east  corner  of  top  of  tower  of  main  college  build¬ 
ing _  26  33.4  E.  of  S. 

St.  Louis  County,  University  City. — The  station  is  in  the  southern  part  of  the 
campus  of  Washington  University,  about  )4  mile  southwest  from  the  town’s 


42 


U.  S.  COAST  AND  GEODETIC  SURVEY 


center.  It  is  about  500  feet  southeast  from  the  southeast  corner  of  the  Graham 
Memorial  Chapel,  about  450  feet  southwest  from  the  southwest  corner  of  the 
Ridgeley  Library  and  Lawr  School,  and  about  160  feet  north  from  the  north  curb 
of  Forsythe  Avenue.  It  is  marked  by  a  limestone  post  5  by  7  by  28  inches, 
with  a  bronze  disk  set  in  the  top,  projecting  about  5  inches  above  the  ground. 


The  following  true  bearings  were  determined: 

O  f 

Top  of  southwest  tower  of  Graham  Memorial  Chapel  (not 

sharp) _ 45  16.0  W.  of  N. 

Top  of  southwest  tower  of  library  and  law  school _  58  00.8  E.  of  N. 

Top  of  southeast  tower  of  library  and  law  school _ 61  05.3  E.  of  N. 

Flagstaff  at  parapet,  of  southeast  tower  of  administration 

building _  69  10.5  E.  of  N. 

Frame  of  window  in  apartment  house,  piece  dividing  panes _  5  51.8  W.  of  S. 


St.  Louis  City. — The  station  is  on  the  baseball  grounds  in  the  northeastern 
part  of  Forest  Park,  about  500  feet  a  little  east  of  south  of  the  old  police  sub¬ 
station,  which  is  now  used  as  a  boys’  clubhouse.  It  is  marked  by  a  limestone 
post  6  by  6  by  36  inches,  lettered  “U.  S.  C.  &  G.  S.,”  and  projecting  5  inches 
above  the  ground.  The  following  true  bearings  were  determined  in  1900: 


Center  of  base  of  flagstaff  on  police  station  (mark) _  22  02.1  W.  of  N. 

Center  of  base  of  flagstaff  on  Young  Men’s  Christian  Associa¬ 
tion  building _  68  42.6  W.  of  S. 


The  station  of  1886  was  located  in  the  pasture  field  of  Henry  Shaw,  south  and 
a  little  west  of  Shaw’s  garden  and  near  the  northwest  end  of  Tower  Grove  Park. 

Saline  County,  Marshall. — The  station  is  in  the  southwestern  corner  of  the 
campus  of  the  Missouri  Valley  College,  about  1)4  miles  southeast  from  the  town’s 
center.  It  is  69.2  feet  north  and  296  feet  east  from  the  south  and  the  west 
fence,  respectively,  of  the  campus.  It  is  marked  by  a  limestone  post  5  by  5  by 
27  inches,  with  a  bronze  disk  set  in  the  top,  projecting  about  3  inches  above  the 
ground.  The  following  true  bearings  were  determined: 


O  / 

South  gable  of  main  college  building  (mark) _  17  45.0  E.  of  N. 

Top  of  tower  on  main  college  building _  15  34.4  E.  of  N. 

Top  of  cupola  on  east  end  of  main  college  building _  19  31.1  E.  of  N. 

Southwest  corner  of  extreme  top  of  the  smokestack _  32  49.2  E.  of  N. 

Lower  southeast  corner  of  horse  shed _ 47  24.1  E.  of  N. 


A  concrete  post  7  by  4  by  30  inches,  projecting  6  inches  above  the  ground, 
with  a  cross  cut  in  the  top,  and  about  375  feet  north  and  to  the  west  of  the 
tennis  court,  marks  the  north  end  of  a  meridian  line. 

Schuyler  County,  Lancaster. — The  station  is  in  the  Odd  Fellows  Cemetery, 
near  the  northwest  corner.  It  is  midway  between  the  northwest  corner  of  lot 
No.  2,  sec.  5,  and  the  northeast  corner  of  lot  No.  3,  sec.  5.  It  is  marked  by  a 
white  limestone  post  8  inches  square  on  top,  lettered  “U.  S.  C.  &  G.  S.,”  and  sunk 
1  inch  below  the  surface  of  the  ground.  A  hole  in  the  top  marks  the  center.  The 
following  true  bearings  were  determined: 

o  / 

Tip  of  schoolhouse  tower _  57  29.2  W.  of  S. 

Tip  of  courthouse  tower _ _ _  60  22.3  W.  of  S. 


Scotland  County,  Memphis. — The  station  is  near  the  southeast  corner  of  the 
high-school  grounds,  34  mile  south  of  town’s  center.  It  is  119.7  feet  southeast 
of  the  southeast  corner  of  the  high  school,  161  feet  southeast  of  the  southwest 
corner,  101.5  feet  south  of  the  cement  walk  leading  to  the  south  end  of  the  build¬ 
ing,  and  29  feet  northwest  of  the  edge  of  the  cut  above  the  road.  It  is  marked 
by  a  limestone  post  6  by  8  inches,  projecting  8  inches  above  ground,  wTith  United 
States  Geological  Survey  bronze  disk  set  in  the  top,  showing  elevation. 
The  following  true  bearings  were  determined: 

O  / 


Right  edge  of  house  near  north  meridian  stone _  00  46.3  E.  of  N. 

Northwest  corner  of  house  across  street  to  east _  55  48.5  E.  of  S. 

Southwest  corner  of  high  school,  second  floor _  47  05.4  W.  of  N. 

Northeast  corner  of  high  school,  second  floor _  22  39.0  W.  of  N. 


MAGNETIC  DECLINATION  IN  MISSOURI 


43 


A  similar  stone,  center  marked,  sets  287.4  feet  to  the  north,  marking  the 
meridian.  It  is  1  foot  south  of  the  fence  north  of  the  high  school. 

Scott  County ,  Benton. — The  station  is  in  the  southwestern  corner  of  the  grounds 
surrounding  the  Catholic  School  of  St.  Denis  Parish  and  is  about  1,200  feet 
northwest  of  the  county  courthouse.  It  is  90.9  feet  from  the  fence  on  the  west 
and  86.7  feet  from  the  fence  on  the  south.  It  is  marked  by  a  rough  field  stone 
about  5  by  6  by  26  inches,  projecting  about  4  inches  above  the  ground.  A  cross 
cut  in  the  top  of  the  stone  indicates  the  exact  spot.  The  following  true  bear¬ 
ings  were  determined: 

o  / 

Top  of  water  tank  in  courthouse  square  (mark) _  13  34.7  E.  of  S. 

Center  of  ornamental  rod  on  courthouse  cupola _  16  16.7  E.  of  S. 

Spire  of  Methodist  Church _  35  12.6  E.  of  S. 

Base  of  cross  on  Catholic  schoolhouse _  78  21.2  E.  of  N.  * 

A  similar  stone  of  about  the  same  size  as  the  one  marking  the  magnetic  sta¬ 
tion  was  placed  220.2  feet  north  of  the  magnetic  station  and  a  cross  cut  in  the 
top  to  mark  the  north  end  of  the  meridian  line. 

Shannon  County ,  Eminence. — The  station  was  in  the  southeastern  corner  of  the 
ground  surrounding  the  public  schoolhouse,  about  1,500  feet  north  of  the  center 
of  the  town.  It  was  92  feet  north  of  the  fence  across  the  road  to  the  south,  72.5 
feet  west  of  the  fence  across  the  road  to  the  east,  and  132.8  feet  southeast  of 
the  southeast  corner  of  the  schoolhouse.  The  marking  stone  is  reported  to  have 
been  removed. 

Shelby  County,  Shelbyville. — The  station  is  near  the  southeast  corner  of  the 
high-school  grounds,  about  34  mile  east  of  the  center  of  town.  It  is  16.6  feet 
north  of  the  cement  walk  in  front  of  the  school  building,  in  line  with  a  row  of 
maple  trees  on  the  east  side  of  the  grounds  and  35.9  feet  south  of  the  south 
tree,  92.4  feet,  southeast  of  the  pump,  131.5  feet  east  of  the  southeast  corner  of 
the  high  school,  and  163.4  feet  east  of  the  cement  walk  leading  to  the  school 
building.  It  is  marked  by  a  round  cement  post  20  inches  in  diameter  by  30 
inches  long,  projecting  1  inch  above  ground,  and  having  a  bronze  disk  in  the 
top.  The  following  true  bearings  were  determined: 


West  edge  of  west  chimney  on  George  Frazier’s  house  (mark)__  27  51.7  W.  of  N. 

South  gable  of  W.  T.  Dennett’s  house _  16  56.8  E.  of  N. 

North  (large)  gable  of  S.  O.  Robert’s  residence _  24  35.3  W.  of  S. 

East  gable  of  R.  Baker’s  residence _  82  34.7  W.  of  N. 

Southwest  corner  of  high-school  building  (on  bricks) _ 81  50.0  W.  of  N. 


Stoddard  County,  Bloomfield. — The  station  is  in  the  southwest  corner  of  the 
grounds  surrounding  the  high  school,  about  34  mile  west  of  the  town’s  center. 
It  is  114  feet  north  of  the  fence  bounding  the  grounds  on  the  south  and  126  feet 
east  of  the  fence  on  the  west.  It  is  marked  by  a  Bedford  limestone  post  6  by  6 
by  32  inches,  projecting  about  834  inches  above  the  ground  and  lettered  “U.  S. 
C.  &  G.  S.,  1908.”  The  following  true  bearings  were  determined: 


O  / 

Top  of  water  tank  back  of  Barrett  Hotel _  78  18.4  E.  of  S. 

Southwest  corner  of  stone  foundation  of  high-school  building _  85  39.0  E.  of  S. 


Auxiliar}^  station  A  is  250  feet  east  of  the  principal  station.  Station  No.  1 
is  at  the  Hill  School,  about  150  feet  a  little  east  of  north  and  across  the  road 
from  the  schoolhouse.  It  is  about  3  miles  a  little  west  of  south  from  Bloomfield. 
No.  2  is  at  West  Antioch,  in  the  southeast  part  of  the  school  grounds,  about  334 
miles  west  from  Bloomfield.  No.  3  is  at  Idalia,  in  the  northern  part  of  the 
school  grounds,  434  miles  a  little  south  of  east  from  Bloomfield.  No.  4  is  at 
Philadelphia,  in  the  northeastern  part  of  the  school  grounds,  about  150  feet 
northwest  from  the  church.  It  is  434  miles  a  little  west  of  north  from  Bloom¬ 
field.  No.  5  is  at  Dexter,  in  the  northeastern  corner  of  the  public-school  grounds, 
about  34  mile  northeast  from  the  town’s  center.  It  is  634  miles  south  from 
Bloomfield.  No.  6  is  at  the  Scagg  schoolhouse,  in  the  northeastern  corner  of 
the  school  grounds,  734  miles  southeast  from  Bloomfield.  No.  7  is  at  Clines 
Island,  in  the  center  of  a  field  on  the  north  side  of  the  school  grounds,  7 34  miles 
east  from  Bloomfield.  No.  8  is  at  Leora,  in  the  west  part  of  the  field  which  is 
east  across  the  road  from  the  school  grounds.  It  is  9  miles  northwest  from 
Bloomfield.  No.  9  is  in  the  town  of  Bernie,  about  34  mile  west  from  the  town’s 
center.  It  is  in  an  open  space  about  230  feet  northwest  from  the  lodge  hall, 
which  was  formerly  the  Baptist  Church.  It  is  1534  miles  south  from  Bloomfield. 


44 


U.  S.  COAST  AND  GEODETIC  SURVEY 


Stone  County,  Galena. — The  station  is  in  the  eastern  part  of  the  ground  sur¬ 
rounding  the  public  school,  on  a  hill  about  34  of  a  mile  west  of  the  center  of  the 
town.  It  is  132.2  feet  northeast  of  the  southeast  corner  of  the  south  extension 
of  the  school  building  and  115.6  feet  east  of  the  northeast  corner  of  the  north 
extension  of  the  school  building.  The  station  is  marked  by  a  Bedford  limestone 
post  6  by  6  by  30  inches,  projecting  about  10  inches  above  the  ground  and  lettered 
“ U.  S.  C.  &  G.  S.,  1908.”  The  following  true  bearings  were  determined: 

o  / 

• 

Corner  stone  at  the  southeast  corner  of  public  square  (mark)__  89  17.9  E.  of  N. 
Base  of  white  post  marked  “  Railroad  Crossing”  on  S.  P.  R.  R_  _  88  54.2  E.  of  S. 
Base  of  pole  on  cupola  of  schoolhouse _  79  27.1  W.  of  S. 

Sullivan  County,  Milan. — The  station  is  in  the  Milan  fairgrounds,  about  200 
feet  south  from  the  main  entrance  and  almost  directly  west  of  the  entrance  to  the 
race  track.  An  elm  tree  due  south  of  the  station  is  48  feet  distant  and  from  the 
station  east  to  the  fence  along  the  race  track  is  about  43  feet.  It  is  marked  by  a 
gray  sandstone  post  6  by  6  by  26  inches,  projecting  134  inches  above  the  surface 
of  the  ground  and  lettered  on  top  “U.  S.  C.  &  G.  S.”  and  on  the  south  side  “1907.” 
The  following  true  bearing  w'as  determined: 

O  t 

Standpipe  in  Milan _  40  00.5  W.  of  N* 

Taney  County,  Forsyth. — The  station  is  about  z/i  mile  north  from  the  center  of 
town  in  the  northern  part  of  the  grounds  which  surrounded  the  Presbyterian 
College,  now  burned  down.  It  is  41.3  feet  south  from  the  north  fence  of  the 
ground  and  55.5  feet  a  little  north  of  east  from  the  pipe  of  an  iron  pump.  It  was- 
marked  by  a  Bedford  limestone  post  6  by  6  by  34  inches,  projecting  about  12 
inches  above  the  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1908,”  the  top  of  which 
has  been  broken  off.  The  following  true  bearings  were  determined: 


o  / 

West  gable  of  a  farmhouse  about  1  mile  distant  (mark) _ 21  55.5  E.  of  N- 

North  gable  of  building  belonging  to  high  school  at  south  side 

of  the  grounds _ •  19  26.4  W.  of  S. 

Auxiliary  station  A  is  250  feet  southeast  of  the  primary.  Station  No.  1  is  in  the 


central  part  of  the  village  of  Camp  Ozark,  about  500  feet  northwest  from  the  boat 
landing  and  about  234  miles  southwest  from  the  principal  station.  No.  2  is  in  the 
northwest  corner  of  the  public-school  grounds,  about  800  feet  north  from  the 
center  of  the  village  of  Kissee  Mills.  It  is  about  38  feet  northeast  from  the  south¬ 
west  fence  of  the  grounds  and  about  93  feet  southwest  from  the  northwest  corner 
of  the  schoolhouse.  No.  3  is  in  the  southwest  part  of  the  public-school  grounds, 
about  300  feet  southeast  from  the  center  of  the  village  of  Kirby ville.  It  is  about  70 
feet  north  from  the  south  fence  of  the  grounds  and  about  60  feet  east  from  the 
west  fence.  No.  4  is  in  the  northern  part  of  the  public-school  grounds  in  the  town 
of  Taneyville,  about  400  feet  south  from  the  center  of  the  village  and  about  200 
feet  north  from  the  schoolhouse.  No.  5  is  about  250  feet  southeast  from  the  center 
of  the  village  of  Walnut  Shade,  in  the  southwest  corner  of  the  field  bounded  on  the 
south  by  the  creek  and  on  the  west  by  the  main  road.  It  is  about  39  feet  north 
from  the  south  fence  of  the  field  and  about  100  feet  east  from  the  west  fence. 

Texas  County,  Houston. — The  station  is  on  the  grounds  of  the  Houston  public 
school,  southeast  of  the  building.  It  is  distant  111.6  feet  and  121.9  feet,  re¬ 
spectively,  from  the  southeast  corner  of  the  east  wing  and  the  southwest  corner  of 
the  main  part  of  the  building.  It  is  also  45.5  feet  and  84.1  feet,  respectively, 
from  the  picket  fences  on  the  east  and  south  lines  of  the  grounds.  The  station  is 
marked  by  a  sandstone  post  6  by  6  by  32  inches,  projecting  1  inch  above  the 
ground  and  lettered  “U.  S.  C.  &  G.  S.,  1905.” 

Vernon  County,  Nevada. — The  station  was  in  the  northern  part  of  a  pasture 
immediately  southwest  of  the  cow  barn  at  the  insane  asylum,  or  State  Hospital 
No.  3,  about  2  miles  north  of  the  center  of  the  town.  The  station  was  108.9 
feet  west  of  the  southwest  corner  of  the  fence  around  a  small  garden  patch, 
also  southwest  of  the  cow  barn,  and  103.5  feet  south  of  the  fence  on  the  northern 
boundary  of  the  pasture.  The  station  marker  is  reported  to  have  been  removed. 

Warren  County,  Warrenton. — The  station  is  in  the  southeastern  corner  of  the 
athletic  field  of  the  Central  Wesleyan  College,  about  34  mile  southeast  from 
the  town’s  center.  It  is  68  feet  west  from  the  east  fence  of  the  ground  and 
97  feet  north  from  the  south  fence.  It  is  marked  by  a  limestone  post  5  by  5  by 


MAGNETIC  DECLINATION  IN  MISSOURI 


45 


20  inches  long,  with  a  bronze  disk  set  in  the  top,  which  is  flush  with  the  ground. 
The  following  true  bearings  were  determined: 

O  t 


Top  of  town  water  tank  (mark) _ 61  40.5  W.  of  N. 

Top  of  front  cornice  of  Central  Wesleyan  Orphan’s  Home _ 19  31.9  E.  of  N. 

South  gable  of  central  barn  of  Central  Wesleyan  Orphan’s 

Home -  39  34.2  E.  of  N. 

Lower  southeast  corner  of  main  college  building _  24  47.9  W.  of  N. 


About  330  feet  distant  a  second  post  7  by  7  by  27  inches  is  set  with  the  top 
about  3  inches  above  the  ground  to  mark  the  north  end  of  a  meridian  line. 
A  hole  in  the  top  marks  the  exact  spot. 

Washington  County,  Potosi. — The  station  was  established  in  the  northeastern 
corner  of  a  pasture  used  as  a  baseball  field  and  which  at  one  time  was  part  of 
the  race  track.  It  was  about  §4  mile  northwest  from  the  town’s  center,  97.3 
feet  west  from  the  east  boundary  fence  of  the  field,  and  92  feet  south  from  the 
north  boundary  fence.  The  station  marker  is  reported  to  have  been  removed. 
The  station  of  1890  was  in  the  courthouse  grounds. 


Wayne  County,  Greenville. — The  station  is  on  the  grounds  of  the  Greenville 
public  school,  north  of  the  building.  It  is  85.3  feet  and  68.2  feet,  respectively, 
from  the  northwest  and  northeast  corners  of  the  building.  It  is  also  54.3  feet 
from  the  east  line  of  the  school  grounds.  The  station  is  marked  by  a  sandstone 
post  6  by  6  by  32  inches,  lettered  “  U.  S.  C.  &  G.  S.,  1905,”  and  set  30  inches  in 
the  ground.  The  following  true  bearings  were  determined: 

O  l 


Baptist  Church  spire  (mark) _ 65  10.9  W.  of  S. 

Christian  Church  spire _ ' _  53  46.6  W.  of  S. 

Cupola  on  Masonic  Hall,  east  gable _  62  49.2  W.  of  S. 


Webster  County,  Marshfield. — The  station  is  on  a  hill  in  a  conspicuous  open 
place  surrounded  on  three  sides  by  a  small  growth  of  timber.  This  hill  is  1 
mile  southeast  of  town  and  is  the  property  of  the  Ozark  Plateau  Land  Co.  The 
station  is  west  from  a  wagon  road  running  southeast  from  town  about  330  feet 
and  about  825  feet  south  of  a  small  stream.  It  is  marked  by  a  limestone  post 
7  inches  square  on  top  which  is  lettered  “U.  S.  C.  &  G.  S.,  1903,”  and  has  a  hole 
in  the  center.  The  following  true  bearings  were  determined: 


Spire  of  Catholic  Church _ 21  35.2  W.  of  N. 

Spire  of  Methodist  Episcopal  Church  South _  47  44.4  W.  of  N. 

Base  of  flagpole  on  courthouse _  42  32.1  W.  of  N. 


Worth  County,  Grant  City. — The  station  is  in  the  cemetery  about  3^  mile 
west  of  town.  It  is  near  the  north  end  of  the  main  drive,  just  south  of  a  flower 
bed.  It  is  47  feet  south  of  the  north  fence,  59  feet  southeast  of  an  ash  tree, 
21.5  feet  northeast  of  the  Mason  monument,  and  24  feet  southwest  of  the  Faubion 
monument.  The  station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  24 
inches,  set  flush  with  the  ground,  and  having  a  brass  magnetic  station  mark  in 
the  top.  The  following  true  bearings  were  determined: 


o  / 

Flagpole  on  courthouse  tower  (mark) _  89  08.0  E.  of  S. 

Flagpole  on  high-school  cupola _  84  30.4  E.  of  S. 

East  gable  of  house  southwest  of  cemetery _  62  36.5  W.  of  S. 

Spire  of  distant  silo  near  large  barn _  43  55.2  W.  of  N. 

Spire  on  city  water  tank _  89  21.2  E.  of  N. 


Wright  County,  Hartville. — The  station  is  in  the  northwest  corner  of  the  pasture 
or  field  immediately  south  of  the  grounds  around  the  residence  of  the  Steel 
family.  The  field  belongs  to  the  Steel  estate  and  is  about  %  of  a  mile  south¬ 
east  of  the  center  of  the  town.  The  station  is  73.1  feet  south  of  the  fence  on 
the  north  and  73.5  feet  east  of  the  stone  wall  bounding  this  field  on  the  west. 
The  station  is  marked  by  a  Bedford  limestone  post  6  by  6  by  32  inches,  projecting 
about  12  inches  above  the  ground  and  lettered  “U.  S.  C.  &  G.  S.,  1908.”  The 


following  true  bearings  were  determined: 

O  / 

Spire  on  Christian  Church  (mark) _  52  53.4  W.  of  N. 

Base  of  rod  on  cupola  of  schoolhouse _  56  54.0  W.  of  N. 

Methodist  Church  spire _  58  55.8  W.  of  N. 

Upper  southwest  corner  of  the  Steel  residence _ —  27  05.3  E.  of  N. 


o 


♦ 


•  . 


THE  USIUf.Y 

OF  IB! 

■  - 


✓ 


! 


• 

’ 


LINES  OF  EQlTAL  MAGNETIC  DECLINATION  FOR  1925 


MISSOURI 


Base  from  U.S.  Geological  Survey 


US. Coast  and  Geodetic  Survey 

TOO'  6°40'E 


92  45 


Scale  1:400,000 


Base  from  U  S.  Geological  Survey 


Fig.2-IS0G0NIC  CHART  OF  MORGAN  COUNTY 

and  values  of  the  declination  for  Jan.  1,1925. 


